Discipline is the tenth studio album by American recording artist Janet Jackson, released by Island Records on February 26, 2008. It was her only album released for Island Records, after her five-album deal with Virgin Records was fulfilled with the release of 20 Y.O.. Jackson worked with producers such as Darkchild, Jermaine Dupri, Ne-Yo, Shea Taylor, Stargate, Johnta Austin, Tricky Stewart, and The-Dream on the album. Jackson's long-time producers Jimmy Jam and Terry Lewis, did not contribute to the project. The album was executively produced by Island Urban president Jermaine Dupri and Jackson.

Four singles were released from the album; the first, "Feedback", was released as a digital download in December 2007. The song reached number nineteen on the Billboard Hot 100 chart, becoming Jackson's best-charting single since 2001's "Someone to Call My Lover". The album's later singles did not share the success of "Feedback". The deluxe version of Discipline contained a DVD documenting the production and promotion of the album and music videos.

Mark Robert Michael Wahlberg (born June 5, 1971) is an American actor, film and television producer, and former rapper. He was known as Marky Mark in his earlier years, and became famous for his 1989 debut as frontman with the band Marky Mark and the Funky Bunch. He was named No. 1 on VH1's 40 Hottest Hotties of the 90's. Wahlberg is well known for his roles in films such as Boogie Nights (1997), Three Kings (1999), The Perfect Storm (2000), Planet of the Apes (2001), Rock Star (2001), The Italian Job (2003), I Heart Huckabees (2004), Four Brothers (2005), The Departed (2006), Invincible (2006), Shooter (2007), and The Fighter (2010), Date Night (2010). He has also served as the executive producer of the TV series Entourage, Boardwalk Empire and How to Make It in America.

Wahlberg was born in the Dorchester neighborhood of Boston, Massachusetts, the youngest of nine children, with siblings Arthur, Jim, Paul, Robert, Tracey, Michelle, Debbie (died in 2003 at age 44), and Donnie. His father was of half Swedish and half Irish ancestry, and his mother is of Irish, English, and French Canadian descent. Maternally, Wahlberg is distantly related to author Nathaniel Hawthorne. Wahlberg's mother, Alma Elaine (née Donnelly), was a bank clerk and nurse's aide, and Wahlberg's father, Donald Edward Wahlberg, was a Teamster who worked as a delivery driver. His parents divorced in 1982. Wahlberg had a Roman Catholic upbringing and attended Copley Square High School (but never graduated) on Newbury Street in Boston.

Katheryn Elizabeth Hudson (born October 25, 1984), known by her stage name Katy Perry, is an American singer, songwriter and actress. Perry grew up with gospel music, and during her first year of high school she pursued a music career as Katy Hudson, releasing her first studio album called Katy Hudson which failed to chart. She recorded a solo album later, which was never released. After signing with Capitol Music Group in 2007, her fourth record label in seven years, she adopted the stage name Katy Perry.

She first gained recognition with the release of her first mainstream album, One of the Boys in 2008, which spawned three Billboard Hot 100 top-ten songs—"I Kissed A Girl", "Hot n Cold" and "Waking Up In Vegas". Perry supported the album with her Hello Katy Tour. In 2010, her third studio album, Teenage Dream (2010), which topped the Billboard 200 chart, and spawned five number one singles—"California Gurls", "Teenage Dream", "Firework", "E.T." and "Last Friday Night (T.G.I.F.)"—Teenage Dream was the only album (after Michael Jackson's Bad)—to do so, and the first female in history to achieve this milestone. She embarked on the California Dreams Tour, which grossed nearly $60 million worldwide. Perry re-released the album under the name of Teenage Dream: The Complete Confection on March 26, 2012, and the re-release has already spawned the number-one single "Part of Me".