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.

Selena Quintanilla-Pérez (April 16, 1971 – March 31, 1995), known simply as Selena, was an American singer-songwriter. She was named the "top Latin artist of the '90s" and "Best selling Latin artist of the decade" by Billboard for her fourteen top-ten singles in the Top Latin Songs chart, including seven number-one hits. The singer had the most successful singles of 1994 and 1995, "Amor Prohibido" and "No Me Queda Más". She was called "The Queen of Tejano music" and the Mexican equivalent of Madonna. Selena released her first album, Selena y Los Dinos, at the age of twelve. She won Female Vocalist of the Year at the 1987 Tejano Music Awards and landed a recording contract with EMI a few years later. Her fame grew throughout the early 1990s, especially in Spanish-speaking countries.

Selena was murdered at the age of 23 by Yolanda Saldívar, the president of her fan club. On April 12, 1995, two weeks after her death, George W. Bush, governor of Texas at the time, declared her birthday "Selena Day" in Texas.Warner Bros. produced Selena, a film based on her life starring Jennifer Lopez, in 1997. Selena's life was also the basis of the musical Selena Forever starring Veronica Vazquez as Selena. In June 2006 Selena was commemorated with a life-sized bronze statue (Mirador de la Flor in Corpus Christi, Texas) and a Selena museum opened there. She has sold over 60 million albums worldwide.

"Who Says" is the thirteenth single released by American singer-songwriter John Mayer, and the first to be released from his fourth studio album, Battle Studies. It is Mayer's first studio recorded single release since "Say" in 2007. On September 25, 2009, "Who Says" was released on John Mayer's official website.

The song’s music video shows images of Mayer clubbing and dining out at night-time paired with scenes of him alone in his apartment, cleaning up and noodling on his guitar. Referencing the video, Leah Greenblatt of Entertainment Weekly asked "Who says the life of a rock star--sexy entourage, late-night pool parties, nubile young things dancing on banquettes--is just a mask for acoustic ennui? John Mayer, that's who," and gave the video a "B".

Critical reception of "Who Says" was mixed; though most praised the song musically, some were skeptical of Mayer's explicit reference to drug use. Crystal Bell of Billboard magazine gave a favorable review from the song, saying, "'Who Says' balances Mayer's signature velvety tone with a more stripped-down, folk-inspired arrangement." She added, "Mayer may not be speaking in grandiose terms about changing the world or marveling over a woman's beauty, but maybe that's the point." Leah Greenblatt of Entertainment Weekly said of the single "Mayer channels Cat Stevens, Jason Mraz, and every camp counselor you ever had on this soft-rockin' celebration of women, wild times, and getting stoned." and gave the song a "B".