paragraph_text: Aerosmith World Tour 2007 (or The Tour Heard 'Round the World) was a concert tour by American hard rock band Aerosmith that saw the band performing outside North America or Japan for the first time in about eight years (since the Nine Lives Tour), and in some countries, the first time in 14 years (since the Get a Grip Tour). As part of the tour, the band also visited some countries for the first time ever, including India, the United Arab Emirates, Latvia, and Estonia.

paragraph_text: The My World Tour was the debut concert tour by Canadian recording artist Justin Bieber. It is Bieber's first concert tour which supports his two-part debut album "My World" and "My World 2.0". The tour was for the first time rocky teswin officially announced on March 16, 2010, a week before "My World 2.0" was released. The tour has multiple legs with the supporting acts of Mindless Behavior, Sean Kingston and Jessica Jarrell on North American dates and pop girl group The Stunners also joined the tour for the first twenty dates. Jasmine Villegas joined the tour as opening act for the second leg. The first leg of the tour is estimated to have grossed $35.6 million post inflation. The tour made a total of $53,341,886 worldwide.

paragraph_text: Referred to as a ``stoner rap ''by AllMusic's Stephen Thomas Erlewine, the lyrics are mostly nonsensical. The song's chorus, in which Beck sings the lines`` Soy un perdedor / I'm a loser baby, so why do n't you kill me?'', is often interpreted as a parody of Generation X's ``slacker ''culture. Beck has denied the validity of this meaning, instead saying that the chorus is simply about his lack of skill as a rapper. Jon Pareles wrote in The New York Times that`` The sentiment of 'Loser' (...) reflects the twentysomething trademark, a mixture of self - mockery and sardonic defiance'', noting Beck's ``offhand vocal tone and free - associative lyrics ''and comparing his vocals to`` Bob Dylan talk - singing''. After its recording, Beck thought that the song was interesting but unimpressive. He later said, ``The raps and vocals are all first takes. If I'd known the impact it was going to make, I would have put something a little more substantial in it. ''The relationship between Beck and Stephenson soured after the release of`` Loser'' as a single. Stephenson regretted his involvement in creating the song, in particular the ``negative ''lyrics, saying`` I feel bad about it. It's not Beck the person, it's the words. I just wish I could have been more of a positive influence.''

paragraph_text: The song is predominantly upbeat, featuring Bieber's R&B vocals over a backdrop containing a dance infused beat, full of keyboard and ``disco string ''synths. The song is composed in the key of E ♭ major with Bieber's vocal range spanning from the low - note of G to the high - note of C. According to Jody Rosen of Rolling Stone, the song`` blends winks at Fifties doo - wop with hip - hop chants'', comparing the style and the lyrics ``My first love broke my heart for the first time / And I was like / Baby, baby, baby, ooooh / I thought you'd always be mine ''to fifties ballads like`` Tears on My Pillow'', ``Why Do Fools Fall in Love ''and`` Earth Angel''. Lyrically, Bieber's lines explain his distress over his lost love, and promise to get it back, featured in lines like, ``And I wan na play it cool / But I'm losin 'you... / I'm in pieces / So come and fix me... ''. The chorus features the distinct and repetitive`` baby, baby, baby, ohhhh (nooooo)'' hook. After the second verse, Ludacris comes in with the verse - rap, an anecdote of young love when he was thirteen, as it runs ``When I was 13 / I had my first love / She had me going crazy / Oh, I was star - struck / She woke me up daily / Do n't need no Starbucks... ''.

paragraph_text: The World of Carl Sandburg was a stage presentation of selections from the poetry and prose of Carl Sandburg, chosen and arranged by Norman Corwin, starring Bette Davis. There was a 21-week national tour 1959–1960, co-starring Davis's husband Gary Merrill, towards the end, he was replaced by Barry Sullivan. Afterwards, there was a one-month run at the Henry Miller Theatre in the fall of 1960, co-starring Leif Erickson. Guitar accompaniment and singing was provided by the folk singer Clark Allen.

paragraph_text: Ricky Raphel Brown (born January 28, 1985), known by the stage name NoClue, is an American rapper from Seattle. He is best known for obtaining the title of the world's official ``Fastest Rap MC ''by Guinness World Records, for rapping 723 syllables in 51.27 seconds (14.1 syllables per second) on his track`` New West'', in January 2005.

paragraph_text: Ali Neffati (22 January 1895 in Tunis – 19 April 1974 in Paris) was a Tunisian cyclist who was professional between 1913 and 1930. He is known for being the first African to participate in the Tour de France, when he participated in the 1913 edition. He also was in the 1914 Tour de France, but didn't finish either of them. In the 1914 Tour, he was hit by a car from the organization, and could not continue.

paragraph_text: "Crazy Rap", also known as "Colt 45 and 2 Zig Zags" or simply "Colt 45", is a dirty rap single recorded by rapper Afroman. It was featured on his third album, "Sell Your Dope", and was later included on his greatest hits album, "The Good Times". It is often referred to as "Colt 45", as the hook states "Colt 45 and two zig-zags, baby that's all we need". The song failed to replicate the success of its predecessor but it nonetheless still charted across Europe, reaching the top 10 in the UK.

paragraph_text: Eoghan Karl Christopher Quigg (pronounced ``Owen '', born 12 July 1992) is from County Londonderry, Northern Ireland. He has two younger brothers, and a baby sister, born during Quigg's participation on the show. He was the youngest contestant out of the 12.

paragraph_text: Champion System Pro Cycling Team () was a Chinese professional cycling team, that competed between 2010 and 2013. The team was based in China and it participated in UCI Professional Continental and UCI World Tour races. In an interview in October 2013 the team's general manager Ed Beamon announced that the team would disband at the end of the season due to its main sponsor withdrawing their support.

paragraph_text: Fresh off spending the previous year touring the world with U2 on their Vertigo Tour, West felt inspired to compose anthemic rap songs that could operate more efficiently in large arenas. To this end, West incorporated the synthesizer into his hip-hop production, utilized slower tempos, and experimented with electronic music and influenced by music of the 1980s. In addition to U2, West drew musical inspiration from arena rock bands such as The Rolling Stones and Led Zeppelin in terms of melody and chord progression. To make his next effort, the third in a planned tetralogy of education-themed studio albums, more introspective and personal in lyricism, West listened to folk and country singer-songwriters Bob Dylan and Johnny Cash in hopes of developing methods to augment his wordplay and storytelling ability.

paragraph_text: The Sacrament World Tour was a concert tour by American metal band Lamb of God. It was in support of the band's 5th studio album "Sacrament". It was the biggest tour the band has done to date; and their new DVD, "Walk with Me in Hell", which was released on July 1, 2008, contains a documentary and live footage from the World Tour.

paragraph_text: Scheila Gonzalez (born August 5, 1971 in Los Angeles, California) is an American, Grammy winning multi-instrumentalist and music educator. She is best known for playing the saxophone and other instruments with artists such as Dweezil Zappa, Alex Acuña, Ray Parker Jr., and many others. She currently plays alto saxophone in the all-female DIVA Jazz Orchestra and is a full-time member of the Zappa Plays Zappa world tour, in which she sings and plays several instruments.

paragraph_text: Her first singing experience was at the famous festival Pro fest, held in Probištip, where she was awarded 'the best newcomer' by the jury and the audience. In 1998, she participated in the Macedonian pre selection for the Eurovision Song Contest - as she was concentrating on a pop singing career at the time, until 2001, when she transformed into a folk music singer. After that, many worldwide tours followed, such as in Germany, Sweden, Switzerland, and Australia.

paragraph_text: Brasse Vannie Kaap (BVK) was a hip-hop group that hailed from the Cape Flats in Cape Town, South Africa. They rapped in predominantly in the Cape Flats dialect of Afrikaans. The original line-up included Deon Daniels (Boeta-D), Roger Heunis (Hamma), Ashley Titus (Mr Fat) and Enver Pietersen (DJ E20). Bboys Cheeze, Baby-L and Levi joined the group soon after they started to perform live.

paragraph_text: ``Crazy Rap '', also known as`` Colt 45 and 2 Zig Zags'' or simply ``Colt 45 '', is a dirty rap single recorded by rapper Afroman. It was featured on his third album, Sell Your Dope, and was later included on his greatest hits album, The Good Times. It is often referred to as`` Colt 45'', as the hook states ``Colt 45 and two zig - zags, baby that's all we need ''. The song failed to replicate the success of its predecessor but it nonetheless still charted across Europe, reaching the top 10 in the UK.

paragraph_text: The top ten (eleven in season ten) toured at the end of every season. In the season twelve tour a semi-finalist who won a sing-off was also added to the tour. Kellogg's Pop-Tarts was the sponsor for the first seven seasons, and Guitar Hero was added for the season seven tour. M&M's Pretzel Chocolate Candies was a sponsor of the season nine tour. The season five tour was the most successful tour with gross of over $35 million.

paragraph_text: "Run the World" is a song recorded by American entertainer Jennifer Lopez for her seventh studio album "Love?" (2011). Written and produced by Terius "The-Dream" Nash and C. "Tricky" Stewart, "Run the World" was one of several songs recorded with the duo following Lopez's move from Epic Records to Island Records. The track originally featured vocals from The-Dream and a rap verse from American rapper Rick Ross however, the rap verse was removed during mastering process and The-Dream was credited with background vocals instead.

paragraph_text: Hi-Teknology is the debut album from producer Hi-Tek, released on Rawkus Records. Most songs feature rapping or singing by other artists, and all are produced by Hi-Tek. A sequel, "Hi-Teknology 2", was made for MCA Records but never released; a second "Hi-Teknology 2" was recorded and released on Babygrande Records.

paragraph_text: The eighth series was won by boy band Collabro, with opera singer Lucy Kay finishing in second place and singing / rapping duo Bars and Melody in third place. During its broadcast, the series averaged around 9.8 million viewers.

Question: Who sings the rap in Baby by the performer in My World Tour?
Answer: Ludacris