Demetria Devonne Lovato ( lə-VAH-toh; born August 20, 1992) is an American singer, songwriter, and actress. She began her career in 2002 on the children's television series Barney & Friends, before rising to prominence for portraying Mitchie Torres in the Disney Channel musical television film Camp Rock (2008) and its sequel Camp Rock 2: The Final Jam (2010). Lovato has released six studio albums: Don't Forget (2008), Here We Go Again (2009), Unbroken (2011), Demi (2013), Confident (2015), and Tell Me You Love Me (2017); all of which debuted in the top five of the Billboard 200. She has earned seven top-20 tracks on the Billboard Hot 100 with "This Is Me", "Here We Go Again", "Skyscraper", "Give Your Heart a Break", "Heart Attack", "Cool for the Summer", and "Sorry Not Sorry". Further, she has embarked on multiple tours, from which she has grossed over $70 million dollars. On television, Lovato has starred as the titular character on Sonny with a Chance (2009–2011), served as a judge and mentor on The X Factor USA in its second and third seasons, and appeared as a recurring character on Glee. In film, she has released an autobiographical documentary, Demi Lovato: Simply Complicated (2017), and voice acted in Smurfs: The Lost Village (2017) and Charming (2018). Lovato is a pop, pop rock, and R&B artist. She has earned numerous awards and nominations, including an MTV Video Music Award, 14 Teen Choice Awards, five People's Choice Awards, and two Latin American Music Awards. She also holds one Guinness World Record, and was included on the annual Time 100 list of the most influential people in the world in 2017. Outside the entertainment industry, Lovato is an outspoken activist for several social causes. In 2013, she received a "Mental Health Award" at the National Children's Mental Health Awareness Day annual event, and in 2016, she was honored with the GLAAD Vanguard Award for her services to LGBT activism.