Demi Lovato – Celebrates her birthday at Knott’s Berry Farm in Buena Park

Demi Lovato: Celebrates her birthday

More...Demi Lovato

• 

  Demi Lovato – Wear oversized jeans for a dinner at Nobu with friends in New York

• 

  Demi Lovato – Arriving at Grammys After-Party at Bar Marmont in Los Angeles

• 

  Demi Lovato – Seen at Madison Square Garden in New York