Question: Ester Dean is an American singer, songwriter, record producer, and actress, who co-wrote a song with what English singer-songwriter, dancer and actress, who rose to fame in 2008 as a member of the group The Saturdays? 

Context articles: Vanessa White
Invincible (Machine Gun Kelly song)
Firework (song)
Rude Boy (Rihanna song)
Another Life (Afrojack and David Guetta song)
Teenage Dream (Katy Perry album)
Ester Dean
Drop It Low (Ester Dean song)
Come &amp; Get It (Selena Gomez song)
Rose Colored Glasses (Kelly Rowland song)

Vanessa Karen White (born 30 October 1989) is an English singer-songwriter, dancer and actress.
 She rose to fame in 2008 as a member of British-Irish girl group The Saturdays, signed to Fascination and Polydor Records.
 The group have achieved substantial success with numerous top-ten hits as well as a number one single.
 She is the youngest member of the group.
"Invincible" is a song by American hip hop recording artist MGK.
 The song, released on April 24, 2012, serves as the second single from his debut studio album "Lace Up".
 The single features vocals from American singer and songwriter, Ester Dean and was produced by Alex da Kid.
 The song was also featured as a background song in the popular video game "Watch Dogs" by Ubisoft in 2014 which later led to the song being increasingly popular.
"Firework" is a song by American singer Katy Perry from her third studio album, "Teenage Dream" (2010).
 Perry co-wrote the song with Ester Dean and its producers StarGate and Sandy Vee.
 It is a dance-pop self-empowerment anthem with inspirational lyrics, and Perry felt it was an important song for her on "Teenage Dream".
 Capitol Records released it as the album's third single on October 26, 2010.
"Rude Boy" is a song by Barbadian singer Rihanna, taken from her fourth studio album, "Rated R" (2009).
 It was released as the album's third single on February 19, 2010, through Def Jam.
 Rihanna co-wrote the song with StarGate, Ester Dean, Makeba Riddick, and Rob Swire, with Swire also co-producing it with StarGate.
 "Rude Boy" is an up-tempo dancehall and R&B song which incorporates elements of raggamuffin.
 The song received mixed to positive reviews from critics; some called it is the highlight of the album, but others criticized Rihanna's "monotone" and "icy" vocal performance.
"Another Life" is a song by Dutch DJ and record producer Afrojack and French DJ and record producer David Guetta, featuring American singer-songwriter Ester Dean.
 It was released on 28 April 2017 via Afrojack's label Wall Recordings.
Teenage Dream is the third studio album by American singer Katy Perry.
 It was released on August 24, 2010, through Capitol Records.
 Musically, it contains pop and dance-pop with influences of disco, electronic, funk, house, gothic rock, Hi-NRG, and hip hop.
 Lyrically, it revolves around teenage love, partying, self-empowerment, and personal growth.
 Perry co-wrote every song on the album, and also worked with a number of producers and writers, including Dr. Luke, Max Martin, Benny Blanco, Tricky Stewart, StarGate, Greg Kurstin, Bonnie McKee and Ester Dean.
Esther Renay Dean (born April 15, 1982), known professionally as Ester Dean, is an American singer, songwriter, record producer, and actress.
 Her 2009 single "Drop It Low" featured singer Chris Brown.
 Dean has also co-written songs for many artists including Christina Aguilera, Florence + The Machine, Katy Perry, Beyoncé, Nicole Scherzinger, Priyanka Chopra, Mary J. Blige, Nicki Minaj, Kelly Clarkson, Ciara, The Pussycat Dolls, Usher, Kelly Rowland, Girlicious, Keri Hilson, Rihanna, R. Kelly, Britney Spears, Melody Thornton, Vanessa White, Kevin McHale, Selena Gomez, G.R.L., Soulja Boy Tell 'Em, Little Mix, Pia Toscano, Tinie Tempah, Lil Wayne, Machine Gun Kelly, Fifth Harmony, and Eurovision Song Contest 2012 winner Loreen.
"Drop It Low" is a buzz single by American singer songwriter Ester Dean.
 The official version features vocals from R&B singer Chris Brown.
 This is also released as the second single from the soundtrack for the film "More Than a Game" (2009).
 The original version of the song did not have Chris Brown featured.
 This version maintains the same lyrics on the second verse but coming from a man's perspective.
 The official remix features Lil Wayne, Trey Songz and Diddy.
 Polow da Don later stated that the song was originally meant for Ciara, but when the singer passed on it, it was eventually given to Ester Dean.
"Come & Get It" is a song recorded by American singer Selena Gomez for her first solo studio album, "Stars Dance" (2013).
 It was released on April 7, 2013 through Hollywood Records as the lead single from the album.
 It serves as her first official release outside of her former band, Selena Gomez & the Scene.
 The song was written by Norwegian production team Stargate, consisting of Mikkel S. Eriksen and Tor Erik Hermansen, along with Ester Dean.
 Eriksen and Hermansen handled the tracks production, while Dean served as the vocal producer.
 The song was one of the last songs to be recorded for the album in early 2013.
 "Come & Get It" features a change in style from Gomez's previous releases, and features elements of electropop and Indian music.
"Rose Colored Glasses" is a song by American recording artist Kelly Rowland, recorded for her third studio album, "Here I Am" (2011).
 It was written by Ester Dean and Lukasz "Dr. Luke" Gottwald, with lyrics reflecting the different perspectives on relationships and how one can perceive a relationship different from the outside.
 It opens with an electro-crescendo followed with vocals by Rowland while Emily Wright produced Rowland's vocals; the production is based upon layered synths and drums, programmed by Dr. Luke.
 Dean helped Rowland to record the song, which Rowland said made her cry as it reminded her of her own experiences in past relationships.
 "Rose Colored Glasses" also had an effect on Rowland's vocals, causing them to swell.
 The song was serviced to rhythmic and contemporary hit radio on June 29, 2010.
 Critics praised "Rose Colored Glasses" as one of Rowland's strongest vocal and emotional performances to date.