"How do you choreograph when he can't hear the music?" ABC's George Stephanopoulos asked.
"Honestly, it's more visual. It's more of a challenge for me this season, but it's a great one," Peta Murgatroyd, DiMarco's dance partner, answered.
But DiMarco is no stranger to challenges.
"(I'm) becoming the spokesperson for the deaf community, and they need me. It's a burden sometimes, but I'm willing to take that burden and change the world's perspective on deaf people," DiMarco signed.