Watch Wilmer Valderrama and Joe Jonas Rock Out to Demi Lovato's "I Really Don't Care"

Instagram | wilmervalderrama

There's obviously no bad blood between Demi Lovato's current boyfriend, Wilmer Valderrama, and ex-boyfriend Joe Jonas. The pair were in the audience to watch Demi perform at the iHeartRadio Music Festival at the MGM Grand in Las Vegas on Sept. 19 and were caught jamming to her hit tune "I Really Don't Care." The video also features Demi's close friends Nick Jonas and James Corden singing the powerful lyrics, while the audience goes wild in the background. Wilmer also took to Instagram to show his support for Demi, saying: "She conquers yet another stage. On to the next one. I feel bad for anyone next after you leave that stage!" Keep scrolling to watch the video of Joe and Wilmer and see more photos of Demi and Wilmer's weekend in Las Vegas, then check out how she showed off her toned body with a sheer top.

Instagram | wilmervalderrama

Wilmer captioned this picture of Demi on stage: "She conquers yet another stage.. On to the next one.. I feel bad for anyone next after you leave that stage! LOL.. #iheartradio #confident"

Instagram | wilmervalderrama

The most adorable group hug.

Instagram | ddlovato

Demi and her boys: Nick, Joe, and Batman.

Getty | Kevin Mazur

Demi and Wilmer snapped a family picture with their new puppy.

Getty | John Shearer

A candid moment between the couple.

Getty | Kevin Mazur

Wilmer and Nick kept their eyes on Demi.

Getty | Kevin Mazur

Demi and Wilmer didn't miss the opportunity to take a picture with Diddy.

Getty | Kevin Mazur

Demi's good friend Hailee Steinfeld was there to support her performance.