Amber Riley (Mercedes) makes her big debut on ABC’s Dancing With the Stars this Monday, September 16, which means that the Glee actress has been hard at work in the dance studio practicing her moves.

In fact, Amber recently told People that she and her partner, Derek Hough, have been rehearsing four hours a day, six days a week. Talk about intense!

Amber’s been singing and dancing on Glee for the past 4 years, but she doesn’t think this history will necessarily give her an advantage in the competition. Sure she’s done a lot of Glee choreography, but Amber wouldn’t consider herself a pro.

Credit: Mike Yarish/FOX ©2011 Fox Broadcasting Co.

"I'm used to having 11 other people around me camouflaging my bad dancing," she jokes. "Now it's me and Derek." (Side note: We’re pretty sure she’s just being modest.)

Derek, the 28-year-old dance pro who has won DWTS an impressive four times already, is actually very similar to one of Amber’s Glee co-stars.

"He is so cute and so sweet and he actually reminds me of Chord [Overstreet]," she tells the mag. Makes sense to us! Not only do Chord, 24, and Derek look similar physically, with their blond hair and blue-gray eyes, but we know from following them on Twitter that both guys have a playful and goofy sense of humor.

We can’t wait to watch Amber make her big DWTS debut. With any luck, we might just even see some of her Glee stars show up to support her from the audience!

Source: People