Happy 18th Birthday to singer, actress, Celebuzz Teen Queen Battle contender and overall cutie, Demi Lovato.

The Camp Rock 2 star celebrated her entry into legal adulthood with a Thursday night bash at the New York restaurant Buddakan, where she hung with friends and co-stars the Jonas Brothers, including ex-boyfriend Joe.

Her Camp Rock co-star Meaghan Martin told Celebuzz that Demi noshed on chocolate cake and did a dance to the hip-hop song ‘Teach Me How to Dougie’ — but she changed the words to ‘Teach Me How to Demi.’

Thanks to Demi’s Twitter, we also know she wore these killer heels.

A selfless Demi gave her family a big gift on her birthday — a new Mediterranean-style home outside L.A., where she will live in a separate house in the backyard.

She told People: “For me to give [that] to my family on my birthday, that was the best present.”

Have an 18th birthday wish for Demi? Send it to her in the comments.