Demi Lovato, Christina Perri & MKTO

Demi Lovato is a singer, songwriter, and television star with a fan base that includes over 22 million die-hard Twitter followers and 33 million fans of Facebook. She is a platinum-selling recording artist whose latest album, Demi, hit #1 on iTunes in over 50 countries around the world. The lead single, "Heart Attack," earned Platinum status just ten weeks after its launch. Demi is currently on the road for the Neon Lights Tour, which was named after the (approaching platinum) third single and Top 5 radio hit off her album,Demi. In addition to her musical accomplishments, in 2014, her book, "Staying Strong: 365 Days a Year," became a New York Times best-seller; she returned to television as a judge and mentor on "The X-Factor" and starred in Fox's hit series "Glee." She is an outspoken advocate for young people everywhere. She has become a role model by talking openly about her personal experiences and speaking out against bullying among other issues. She serves as an official Ambassador for We Day and the organization Free The Children. She has recently launched The Lovato Treatment Scholarship Program, which helps people struggling with mental health and/or addiction issues cover the cost of treatment.