"Joey is wearing his Cuban heels," Johnson tells us. "I make him wear them all the time. His ankles and leg muscles are sore because he's wearing them. He's always complaining about it."
Things probably wouldn't be so painful if the former boy band star had worn them as much when he and Johnson competed together the first time around.
"He was a bit lazy season four," Johnson said. "He didn't wear them all the time and I let him get away with it, so it's my fault. So now I'm cracking the whip a little more. I'm not taking any of his nonsense."
At the moment, Johnson says, Gilles Marini is the one to beat. "He's in there all the time and rehearsing," she said. "And just look at him—he's so handsome. I said to Joey, 'You know, Gilles is going to take his shirt off.' So Joey said he's going to paint his abs on. I was like, 'That's not quite the same.'"
The new season of DWTS kicks off Sept. 24.
Better start on those crunches, Joey!