The celebrity cast of Dancing With the Stars' 19th season will take to the dance floor this week, and before they do, check out who'll be competing for the gold. Nostalgic favorites like Cheech and Chong's Tommy Chong, The Fresh Prince of Bel-Air's Alfonso Ribeiro, and Mean Girls hunk Jonathan Bennett will surely bring back a flood of memories for people watching at home, while fresher faces like Pretty Little Liars' Janel Parrish, Duck Dynasty's Sadie Robertson, and YouTube star Bethany Mota will have to prove their talents on the dance floor. Plus, DWTS fans will be happy to know that Julianne Hough is returning — as a judge. (Sadly, it looks like another pro dancer favorite Maksim Chmerkovskiy is really not coming back.) Keep reading to see a breakdown of the stars and the pairings, and don't forget to tune in.