Demi Lovato is an American singer, songwriter, and actress. She is best known for her hit single 'Sorry Not Sorry' which was released in 2017. Lovato has been active in the music industry since 2008 and has released six studio albums. She has won numerous awards, including an MTV Video Music Award and a People's Choice Award. Her music has been praised for its honest lyrics and powerful vocals. Lovato is also an advocate for mental health awareness and has spoken openly about her own struggles with depression, anxiety, and addiction.