Shawn, 20, took home the mirrored ball trophy with Mark Ballas during season eight.
Derek, 27, has won it three times with Brooke Burke (who now co-hosts the program), Nicole Scherzinger and most recently, with Jennifer Grey.
“Who is ready for Dancing With The Stars ALLSTARS?! @abcdwts #dwts” Shawn excitedly tweeted.
“Dancing with the Stars: All-Stars” premieres Monday, September 24th @ 8PM ET/PT on ABC!
WHICH COUPLE ARE YOU ROOTING FOR?