Amber Riley

Amber Riley became an early frontrunner when she made her Dancing with the Stars debut Monday, likely due to the rigorous training she'd already become accustomed to.

"Glee is much more grueling [than] DWTS. Trust me," Riley told Us Weekly.

But according to her partner Derek Hough, things won't always be so easy for the star. "Ask her again in a few weeks," Hough joked. "DWTS is live and it's one take, so this is eventually going to be harder."

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Riley acknowledged that the live aspect of DWTS does add in new challenges. "On Glee, there's cutaways, a take two ... 11 other people distracting your bad dancing. If you forget something, they can edit it out."

Now that Hough has seen what Riley's capable of, he plans to amp up the intensity of their routines. "I saw right away she was really good at maintaining the things I was teaching her. She would come in the next day and have retained that information," Hough explained. "We were able to get better and better. I'm going to whoop her ass now!"

Watch Riley and Hough's first DWTS performance below. How do you think she did?