Selena Marie Gomez (born July 22, 1992 in Grand Prairie, Texas) is an American actress, singer, and businesswoman, who portrayed Gianna in seasons 7-8 of Barney & Friends. She has two younger half-sisters: Gracie Elliot Teefey and Victoria "Tori" Gomez
Her role as Gianna was one of her first appearances on television. In an interview with E!, she admitted that her classmates would tease and make fun of her for acting in a show aimed at preschoolers.
It was on the set of Barney that she met what would become her long-time friend, Demi Lovato who was playing Angela. Like Lovato, Gomez quit Barney and Friends in 2004 because the producers felt she was getting too old for her role.
Outside of Barney, she is most well known for portraying Alex Russo in the Emmy Award-winning Disney Channel television series Wizards of Waverly Place. She also appeared in films such as Ramona and Beezus, Hotel Transylvania and Spring Breakers.