But for this week's Switch Up night, DiMarco had to say a temporary goodbye to his DWTS pro, Peta Murgatroyd, and hello to a brand-new partner for the week: Sharna Burgess -- and only ET was invited into their waltz-filled rehearsals!
"I have it say it was touching and an honor that she came to see our work," DiMarco gushed via his ASL interpreter Ramon Norrod. "I was on her show and she trained me and I think it's different for her to come and see me work. It means so much for me for her to take the time to come and do that.
Press play on our interview above for a deeper peek at DiMarco's Switch-Up routine and don’t miss Dancing With the Stars tonight at 8 p.m. ET/PT on ABC.