"I do have a bad knee," Carson Kressley said. "It hurts, but the knee brace keeps all the things together."
Ricki Lake is on the injured list too, but she says it's worth the pain.
"I'm really taking care of myself," she said. "I'm trying to get a lot of sleep, I'm eating really well and I'm trying to do what (partner Derek Hough) tells me to do. But no, I'm hurt."
Then there's J.R. Martinez, who ended up bruised preparing for this week's Jive.
"I was driving so hard I kicked myself in the shin, so I got a couple little bruises, nicks," he said.
David Arquette has also grimaced in pain this far into the season.
"It's wear and tear on the body," he said. "There's a lot of aches and pains."
On Monday night, they'll have to put their grievances aside to convey a personal story in time through music and dance.
"We're pulling out all the stops, including semi-nudity," Arquette said. "We're going there, we have to. We've got nothing left. We'll be naked to the world."
Martinez said his dance is going to have to do a lot with the military and his time in service.
Nancy Grace said it was easing picking her most wonderful year. That was 2007 when she became a mom to her twins, Lucy and John David.
Rob Kardashian wouldn't get into specifics about his dance, only saying "it's someone who meant a lot to me, and we're dedicating that song to him."
Those personal stories from the stars' most memorable years will be revealed on the dance floor beginning at 8 p.m. Monday on ABC7.
To see photos of the "Dancing With The Stars" season 13 premiere, check out our slideshow!