Demi Lovato Celebrates 27th Birthday at Ariana Grande Concert!

Demi Lovato is celebrating her 27th birthday early!

The singer and a few friends – including manager Scooter Braun – kicked off her birthday celebrations at Ariana Grande‘s concert on Monday night (August 19) at the O2 Arena in London, England.

PHOTOS: Check out the latest pics of Demi Lovato

Before the show, Demi joined Ariana backstage where the entertainer and her dancers wished Demi a happy birthday.

“This was too sweet not to post…. before show prayer they did this for my bday 🥺😭 I’m so so proud of you @arianagrande. You fucking killed that!!! I love you tons 💕,” Demi captioned the Instagram video.

Ariana then commented on the post writing, “☁️☺️ love u so much !!! thank u for coming !!!!”

Demi officially turns 27 on Tuesday, August 20.

Head to Demi Lovato‘s Instagram to see the video!