Demi Lovato is an American singer, songwriter, and actress born in 1992 in Albuquerque, New Mexico. She began her career as a child actress in Barney & Friends in 2002 and rose to fame in the Disney Channel movie Camp Rock. Lovato struggled with bullying, depression, bipolar disorder, eating disorders, and substance abuse issues over the years. She has become an advocate for mental health and anti-bullying causes by sharing her personal story through her music, writing, and speaking engagements.