Heartbroken Demi Lovato all smiles at fight night

Demi Lovato put on a brave face while attending a fight night on Saturday (04Jun16), a day after revealing she and longtime boyfriend Wilmer Valderrama had split.

The singer was all smiles as she and some friends hit UFC 199 at The Forum in Inglewood, California.

The 23-year-old Cool for The Summer hitmaker and 36-year-old Wilmer posted a joint statement on Instagram late on Friday (03Jun16), announcing they had parted ways.

"After almost 6 loving and wonderful years together, we have decided to end our relationship," they wrote. "This was an incredibly difficult decision for both of us, but we have realized more than anything that we are better as best friends."