Nick Jonas Was Angry With Demi Lovato for Punching Someone on the Jonas Brothers Tour in 2010

Nick Jonas and Demi Lovato are “friends with (career) benefits” on the latest cover of Billboard magazine.

Here’s what the longtime friends, tourmates, and business partners had to share with the mag:

Nick on Demi leaving the 2010 Jonas tour after punching a dancer: “That we were going to get sued. I mean, it was bad. On top of losing a friend, we have seven dates left, it’s a big production, people are expecting to see Demi and that’s not going to happen. I was angry…”

Demi on leaving Disney: “We joked around that it was Disney High, except we all were shooting shows and really overworking. I joke that I sometimes have PTSD after leaving the channel, because if my schedule starts to get too busy, I rebel and I get bitchy…”

Demi on standing up for Ariana Grande at Mariah Carey’s expense: “I’m sure she’s sitting on diamond records not giving a f– what I have to say. That’s fine. I don’t even give a f– what I have to say. That’s why I just say it.”

For more on Nick and Demi, visit Billboard.com.