Shania Twain will appear on ABC's Dancing With the Stars (DWTS) on Monday (10/23, where she's slated to serve as a guest judge on the reality dance competition. People magazine was the first to report Twain's appearance on Monday night’s episode, which will feature dance routines that pay tribute to iconic dance moments in film history. While on the show, Shania will also take center stage to perform "Soldier," a track from her brand-new album, Now. DWTS airs Mondays at 8 PM ET on ABC.