Bye Ariana Grande: Demi Lovato Takes Over Singer’s Part During ‘Bang Bang’ Performance

Ariana's Big Bang
Ariana Grande gets smacked in the face during concert.
Demi Duets With Joe
Demi Lovato and Joe Jonas reunite for 'Camp Rock' duet.
Demi Lovato had some big thigh-high boots to fill during Wednesday night’s Jessie J concert in San Jose, Calif. When it came time for Ariana Grande’s verse in “Bang Bang,” the former Disney star was tasked to take over for the absent pint-sized songstress.

Judging by the reaction of the crowd, Lovato definitely stepped up to the plate and delivered.

The singer later gushed about the opportunity, writing on her Twitter:

Did she really slay it? Watch her performance in the video above and then sound off in the comments.