Glen Ballard (born May 1, 1953 in Natchez, Mississippi) is an American songwriter and record producer, best known for co-writing and producing Alanis Morissette's Jagged Little Pill (1995), which won Grammy Award for "Best Rock Album", and "Album of the Year" amongst others, and is ranked by the Rolling Stone amongst The 500 Greatest Albums of All Time. He was involved in the recording and writing of Michael Jackson's Thriller and Bad. As a writer he co-wrote songs like "Man in the Mirror" (1987) and "Hand in My Pocket" (1995). He is the founder of Java Records.

He won the 2006 Grammy Award for Best Song Written for a Motion Picture for the song "Believe" (The Polar Express).

He has performed on, or produced, the following:

Ballard wrote the screenplay for Clubland, an ill-received music-driven film about an aspiring musician in Los Angeles. He has written songs in half-a-dozen films including The Slugger’s Wife, Navy Seals, and Batman: Mask of the Phantasm.

Ballard co-wrote the music and lyrics for Ghost The Musical with David A. Stewart and Bruce Joel Rubin, which opened in London's West End on 19 July 2011 and will open on Broadway in the spring of 2012.

Alanis Nadine Morissette (born June 1, 1974) is a Canadian singer-songwriter, guitarist, record producer, and actress. She has won 16 Juno Awards and seven Grammy Awards, was nominated for two Golden Globe Awards and also shortlisted for an Academy Award nomination. Morissette began her career in Canada, and as a teenager recorded two dance-pop albums, Alanis and Now Is the Time, under MCA Records Canada.

Her first international album was the rock-influenced Jagged Little Pill, released in 1995. Jagged has sold more than 33 million units globally. Her following album, Supposed Former Infatuation Junkie, was released in 1998 and was a success as well. Morissette took up producing duties for her subsequent albums, which include Under Rug Swept, So-Called Chaos and Flavors of Entanglement. Morissette has sold more than 60 million albums worldwide. Morissette is also known for her powerful and emotive mezzo-soprano voice.

Morissette acquired United States citizenship in 2005.

Morissette was born June 1, 1974 in Ottawa, Ontario, Canada, the daughter of Georgia Mary Ann (née Feuerstein), a teacher of Hungarian descent, and Alan Richard Morissette, a French-Canadian high school principal. She has a twin brother, Wade Morissette, (also a musician) who was born 12 minutes after her. Morissette was raised Catholic. She attended Glebe Collegiate Institute (Ottawa, Canada) for high school.

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".