Demi Lovato Has Pre-Birthday Billboard Hot 100 Fest Performance

Demi Lovato continued her birthday weekend with a performance at the Billboard Hot 100 Music Festival on Saturday (August 19) in Wantagh, New York.

The entertainer turns 25 years old TODAY (August 20). Happy birthday Demi!!!

PHOTOS: Check out the latest pics of Demi Lovato

Demi was joined at the festival by fellow performers Bea Miller, Big Sean, and Tinashe.

Check out a snippet of Demi performing “Sorry Not Sorry” below!

The day before, Demi hit the stage in the pouring rain at Good Morning America.

Earlier in the week, Demi opened up about being single and navigating adulthood.

FYI: Bea is wearing a PrettyLittleThing jacket.