DWTS 10th Anniversary Special - Opening Number Featuring: Val Chmerkovskiy, Jenna Johnson, Peta Murgatroyd, Artem Chigvintsev, Sharna Burgess, Mark .\rbr\rbrKELLY MONACO (AGE 38) - PHILADELPHIA, PENNSYLVANIA - ACTRESS Known From: General Hospital | Valentin Chmerkovskiy (Pro) in 2005 (Season 1) .\rbr\rbrDANCING WITH THE STARS - 10TH ANNIVERSARY - SEASON 20 - BALLROOM COMPETITION Performers: Amber Riley (Glee), Amy Purdy (Olympics), .\rbr\rbr\rbr\rbrDancing with the Stars was celebrating its 10th anniversary and Extra special correspondents Leah Remini and Tony Dovolani were backstage at the special .