Just last week, Joe was spotted supporting his girl at NYFW.
ET caught up with Jonas and his new band, DNCE, at the iHeartRadio Music Festival
The 18-year-old supermodel is shy about her relationship, but can't stop smiling when talking about it.
So adorable!
The singer was seated next to the runway as his model girlfriend strutted her stuff.
'I was in my underwear, running around my house screaming,' she tells ETonline.
Find out what made the singer run around screaming in her underwear.
This song makes more sense when the swollen supermodel sings it.
Good genes clearly run in this family.
The R&B singer is red-hot in the brand-new video for his latest hit.
UPDATED: The show airs live on Sunday, June 28, at 8 pm ET/PT on BET.
Sam Taylor-Johnson directs the four-minute clip.
