Barbra Joan Streisand (/ˈstraɪsænd/; born April 24, 1942) is an American singer, actress, writer, film producer and director. She has won two Academy Awards, eight Grammy Awards, five Emmy Awards including one Daytime Emmy, a Special Tony Award, an American Film Institute award, a Peabody Award, and is one of the few entertainers who have won an Oscar, Emmy, Grammy, and Tony Award.

She is one of the most commercially and critically successful entertainers in modern entertainment history, with more than 71.5 million albums shipped in the United States and 140 million albums sold worldwide. She is the best-selling female artist on the Recording Industry Association of America's (RIAA) Top Selling Artists list, the only female recording artist in the top ten, and the only artist outside of the rock and roll genre. Along with Frank Sinatra, Cher, and Shirley Jones, she shares the distinction of being awarded an acting Oscar and also recording a number-one single on the U.S. Billboard Hot 100 chart.

Selena Marie Gomez (born July 22, 1992) is an American actress and singer best known for portraying Alex Russo in the Emmy Award-winning Disney Channel television series Wizards of Waverly Place. She subsequently ventured into feature films and has starred in the television movies Another Cinderella Story, Wizards of Waverly Place: The Movie, and Princess Protection Program. She made her starring theatrical film debut in Ramona and Beezus.

Her career has expanded into the music industry; Gomez is the lead singer and founder of the pop band Selena Gomez & the Scene, which has released three RIAA Gold certified studio albums, Kiss & Tell, A Year Without Rain, and When the Sun Goes Down, spawned three RIAA Platinum certified singles, "Naturally", "Who Says" and "Love You Like a Love Song" and charted four No. 1 Billboard Hot Dance Club Songs. Gomez has also contributed to the soundtracks of Tinker Bell, Another Cinderella Story, Wizards of Waverly Place, and Shake It Up after signing a record deal with Hollywood Records.

Demetria Devonne "Demi" Lovato (born August 20, 1992) is an American singer-songwriter, musician, and actress. Her earliest roles included Angela on Barney & Friends, before she became better known for her starring roles in the Camp Rock movies, as Sonny Munroe in the Disney sitcom Sonny with a Chance, and as the star of the 2009 movie Princess Protection Program. She is also involved in philanthropic activities through charity work and various social and environmental causes.

As a solo musical artist, Lovato released her debut album Don't Forget on September 23, 2008. The album debuted at number two on the Billboard 200 selling 89,000 copies in the first week. It has since shipped over 500,000 copies, earning a gold certification in the United States. Lovato released her second album, Here We Go Again, on July 21, 2009. The album debuted at number one on the Billboard 200, selling 108,000 copies in the first week. Her third studio album, Unbroken, was released on September 20, 2011 and peaked at number four on the Billboard 200. She is working on her fourth studio album.