Ariana Grande & Jessie J Fire Up Q102's Jingle Ball in Philly

Jessie J and Ariana Grande seem to get in each other’s faces while performing on stage together at Q102′s Jingle Ball 2014 held at Wells Fargo Center on Wednesday night (December 10) in Philadelphia, Penn.

“Tonight might’ve been the most fun yet #jingleball love u philly. be back soon,” the 21-year-old singer posted on Twitter after the show.

PHOTOS: Check out the latest pics of Ariana Grande

Ariana‘s been at the center of a weird rumor — that she wants to be carried like a baby!

An outlet reported that Ari‘s “new rule is that she has to be carried – literally carried like a baby – when she doesn’t feel like walking.” Thankfully this rumor is completely false (via GossipCop)!

FYI: Ariana is wearing a For Love & Lemons outfit.

20+ pics inside of Ariana Grande and Jessie J…