Question: Who is We Belong Together, by the artist who performed Up Out My Face, about?

full_context: Document 1: Katy Perry: Part of Me: The film features interviews with Perry and her loved ones documenting the trajectory of her life, containing various clips from her childhood and teenage years as well as her career and personal life. The film is spliced with performances from her worldwide California Dreams Tour, which had 127 concerts from February 20, 2011 to January 22, 2012. Most of the performances were recorded on November 23, 2011, at the Staples Center in Los Angeles, but also included performances in Tokyo and São Paulo. Some of her friends such as Rihanna, Lady Gaga, Adele and Jessie J make cameos in the film. The documentary includes scenes of Perry dealing with the breakdown of her marriage with English actor/comedian Russell Brand.
Document 2: We Belong Together: The song's music video was filmed as a two - part story with ``It's Like That '', which featured Carey at her bachelorette party. The video for`` We Belong Together'' is a continuation focusing on Carey's wedding to an older and powerful man and ends with the singer eloping with her ex-lover. Rumors arose of the video's connection to her 1993 marriage to Tommy Mottola. Carey performed the song on several award shows and television appearances around the world, namely MTV Movie Awards, MTV Video Music Awards, Macy's Fourth of July Parade, The Oprah Winfrey Show and the 48th Grammy Awards. In Europe the song was performed at the Live 8 charity concert, the Fashion Rocks in Monaco, and the German Bambi Awards. Carey performed the song on both her Adventures of Mimi and Angels Advocate Tours.
Document 3: Like Toy Soldiers: ``Like Toy Soldiers ''tells the story of Eminem's attempts to calm a violent community of rappers. Eminem speaks openly about problems with The Source magazine and its editor Benzino, as well as the situation between 50 Cent and Ja Rule and his label Murder Inc., which Eminem felt went far beyond the Jay Z vs. Nas feud. The song finishes as Eminem offers a truce to his enemies. In addition, this song also reveals that Eminem had tried to stop Ja Rule & 50 Cent's feud, but lost it when he heard Ja Rule making fun of his daughter on a track called`` Loose Change'' - (``The Ja Shit, I tried to squash it, It was too late to stop it, There's a certain line you just do n't cross and he crossed it, I heard him say Hailie's name on a song and I just lost it ''). In the song`` Loose Change'', Ja Rule says Eminem claims his then ex-wife is ``a known slut ''and his mother`` a crackhead'', and then asks him ``so what's Hailie gon na be when she grows up? ''.`` Like Toy Soldiers'' was later included on Eminem's compilation album Curtain Call: The Hits in 2013. Throughout his career, Eminem, at most, only alludes to Suge Knight, completing a line in this song, ``my intentions were good, I went through my whole career without ever mentioning -. ''Styles P used the instrumental version in his song`` Soldiers Song'', in 2006.
Document 4: Cleanin' Out My Closet: "Cleanin' Out My Closet" is a song by American rapper Eminem from his album "The Eminem Show" (2002). "Cleanin' Out My Closet" was the second single released off the album following "Without Me". Unlike the preceding single which was as his humorous Slim Shady persona, "Cleanin' Out My Closet" was a serious song inspired by the events of Eminem's childhood and relationships. It depicts Eminem venting his anger towards his mother, Debbie Mathers, for the way she raised him. In the chorus, Eminem sarcastically apologizes to his mother for hurting her and making her cry, but takes it back by showing the world what his mother, according to him, was like.
Document 5: Madonna (entertainer): From the beginning of 2014, Madonna began to make multiple media appearances. She appeared at the 56th Annual Grammy Awards in January 2014, performing "Open Your Heart" alongside rappers Macklemore & Ryan Lewis and singer Mary Lambert, who sang their single "Same Love", as 33 couples were wed onstage, officiated by Queen Latifah. Days later, she joined singer Miley Cyrus on her MTV Unplugged special, singing a mash-up of "Don't Tell Me" and Cyrus' single "We Can't Stop" (2013). She also extended her business ventures and in February 2014 the singer premiered MDNA Skin, a range of skin care products, in Tokyo, Japan. After visiting her hometown of Detroit during May 2014, Madonna decided to contribute funds to three of the city's organizations, to help eliminate poverty from there. The singer released a statement saying that she was inspired by their work, adding that "it was obvious to me that I had to get involved and be part of the solution to help Detroit recover".
Document 6: Beyoncé: Beyoncé is believed to have first started a relationship with Jay Z after a collaboration on "'03 Bonnie & Clyde", which appeared on his seventh album The Blueprint 2: The Gift & The Curse (2002). Beyoncé appeared as Jay Z's girlfriend in the music video for the song, which would further fuel speculation of their relationship. On April 4, 2008, Beyoncé and Jay Z were married without publicity. As of April 2014, the couple have sold a combined 300 million records together. The couple are known for their private relationship, although they have appeared to become more relaxed in recent years. Beyoncé suffered a miscarriage in 2010 or 2011, describing it as "the saddest thing" she had ever endured. She returned to the studio and wrote music in order to cope with the loss. In April 2011, Beyoncé and Jay Z traveled to Paris in order to shoot the album cover for her 4, and unexpectedly became pregnant in Paris.
Document 7: We Are Never Ever Getting Back Together: The video, which is done seemingly as one continuous shot, begins with Swift in colorful pajamas recounting the events of her off and on again relationship with her ex-boyfriend (played by Noah Mills). The video then segues into Swift going into her living room where her band is dressed up in animal costumes and Swift belts out the chorus of the song. The video then goes to a TV where Swift says ``Like, ever. ''and then to the dining room where we see she returns to recounting the events of her relationship and receives a phone call from her ex who is calling her from a nightclub. Swift hangs up on him and he walks off screen into the nightclub. It then goes to the two in a truck having an argument then to them having a stroll in the park. Swift then runs off and we see her on the phone telling the person on the other line how she and her ex are not getting back together and her frustration of their entire relationship. The video then segues back to Swift's living room where a party is going on and her ex shows up unannounced trying to woo her back and she slams the door in his face. The video ends with Swift on her window ledge where she was at the beginning of the video, singing the last line of the song.
Document 8: I Don't Wanna Cry: Its lyrics talk about Carey and her lover being involved in a tumultuous relationship. It was Carey's first single that she did not co-write with Ben Margulies. When she and Walden first wrote the song, she was excited because it sounded like something that would be played on the radio. However, due to bad experiences during its production and because she feels it "doesn't have a message," Carey stated in an MTV interview that she dislikes the song and tries to sing it as rarely as possible. Carey had lobbied to co-produce the song, but was denied permission by Columbia Records. She often fought with Walden in the studio concerning the song's production, and as a result Walden became her least favorite among the producers who worked on her debut album. Due to this, Carey had not performed the song since her 1996 Daydream World Tour; though it was reinstated in 2015 for her #1 to Infinity concert residency in Las Vegas.
Document 9: Look What You Made Me Do: However, Maura Johnston of The Guardian wrote a negative review of the song, faulting the ``sloppy ''lyrics and blaming Swift for not giving a clear context in the lyrics. Brittany Spanos of Rolling Stone believed that the song marked a continuation of the feud between Swift and rapper Kanye West; the latter had previously name - dropped Swift in his song`` Famous'' by using the line, ``I feel like me and Taylor might still have sex / Why? / I made that bitch famous ''. The single was noted as being a darker, angrier work than what Swift had done before. Hugh McIntye of Forbes was critical of the change in style, saying that it`` did n't sound like (Swift)'' and that it ``may have some kinks to work out ''. Meaghan Garvey from Pitchfork referred to it in a review as`` a hardcore self - own'' track.
Document 10: Heartbreaker (Mariah Carey song): Carey performed "Heartbreaker" live on several television and award show appearances around the world, as well as on her concert tours. The accompanying music video for "Heartbreaker", directed by Brett Ratner, is one of the most expensive ever made, costing over $2.5 million. The video features Carey and her friends visiting a film theater and catching her boyfriend (played by Jerry O'Connell) on a date with another woman. Carey played herself and a brunette villainess named Bianca, during a physical altercation scene in between the two women. Due to contractual agreements at the time of its filming, Jay-Z was unable to make an appearance in the video, instead being portrayed as an animated cartoon. The video was inspired by several films, including "Grease" and "Enter the Dragon".
Document 11: It's Like That (Mariah Carey song): "It's Like That" is a song recorded by American singer and songwriter Mariah Carey for her tenth studio album, "The Emancipation of Mimi" (2005). Written by Carey, Jermaine Dupri, Manuel Seal, and Johntá Austin, and produced by Carey, Dupri, and Seal, the song borrows the hook "It's Like That Y'all" from the Run–D.M.C. tracks "Hollis Crew" and "Here We Go (Live)". Several other tracks were contenders for the album's lead single. However, plans were changed when Island Def Jam Music head L.A. Reid suggested to Carey she record a few more strong songs to ensure the album's success, therefore "It's Like That" was written and chosen as the album's lead single, being released on January 25, 2005.
Document 12: Up Out My Face: "Up Out My Face" is a song by American singer and songwriter Mariah Carey from her twelfth studio album, "Memoirs of an Imperfect Angel" (2009). Written and produced by Carey, Tricky Stewart and The-Dream, it is a club music song which includes a marching band in its instrumentation. It received a mixed response from music critics, but its humorous lyrics attracted praise. Brian Mansfield of "USA Today" believed that the lyrics were directed at Eminem, whom Carey has a longstanding feud with, at one point singing "I know you're not a rapper, so you better stop spittin' it." Carey released "Up Out My Face" as a remix featuring Nicki Minaj in January 2010 for a proposed "Memoirs of an Imperfect Angel" remix album called "Angels Advocate", which was ultimately shelved.
Document 13: You Belong with Me: The song's accompanying music video was directed by Roman White. The video featured Swift portraying two characters, a nerd (the protagonist and narrator) and a popular girl (the antagonist and girlfriend), while American actor Lucas Till portrayed the male lead. The video's plot centers on the protagonist secretively loving the male lead, although he has a girlfriend. The video won the MTV Video Music Award for Best Female Video at the 2009 MTV Video Music Awards, but during Swift's acceptance speech, rapper Kanye West interrupted, protesting in support of Beyoncé. The incident caused a reaction in the media, with many coming to Swift's defense. The song was performed live at numerous venues, including the 2009 -- 10 Fearless Tour, where it was the opening number. It was covered by various artists, including Butch Walker and Selena Gomez & the Scene, and parodied by ``Weird Al ''Yankovic.
Document 14: Upgrade U: The music video for the song was directed by Melina Matsoukas, and took one and a half days of shooting. Knowles did an impersonation of Jay-Z in the clip and is also seen amidst gold watches and jewelry, continuing the motif of luxury that is alluded to in the song. It finally emerged as the forty-fifth best R&B/Hip-Hop song of 2007 in the United States. Although Knowles did not perform "Upgrade U" in any televised appearances, the song was a part of her set list on The Beyoncé Experience tour (2007), and I Am... Tour (2009–10), as well as her and Jay Z's joint On the Run Tour (2014).
Document 15: Like Toy Soldiers: ``Like Toy Soldiers ''tells the story of Eminem's attempts to calm a violent community of rappers. Eminem speaks openly about problems with The Source magazine and its editor Benzino, as well as the situation between 50 Cent and Ja Rule and his label Murder Inc., which Eminem felt went far beyond the Jay Z vs. Nas feud. The song finishes as Eminem offers a truce to his enemies. In addition, this song also reveals that Eminem had tried to stop Ja Rule & 50 Cent's feud, but lost it when he heard Ja Rule making fun of his daughter on a track called`` Loose Change'' -- (``The Ja Shit, I tried to squash it, It was too late to stop it, There's a certain line you just do n't cross and he crossed it, I heard him say Hailie's name on a song and I just lost it ''). In the song`` Loose Change'', Ja Rule says Eminem claims his then ex-wife is ``a known slut ''and his mother`` a crackhead'', and then asks him ``so what's Hailie gon na be when she grows up? ''.`` Like Toy Soldiers'' was later included on Eminem's compilation album Curtain Call: The Hits in 2005. Throughout his career, Eminem, at most, only alludes to Suge Knight, completing a line in this song, ``my intentions were good, I went through my whole career without ever mentioning -. ''Styles P used the instrumental version in his song`` Soldiers Song'', in 2006.
ground_truth: Tommy Mottola
sub_queries: The song Up Out My Face is by what artist? Answer: Mariah Carey
who is we belong together by Mariah Carey about Answer: Tommy Mottola