Joanna Krupa "Trying to Get Her Butt Back"

What's the first thing model Joanna Krupa will do now that she's been voted off Dancing With the Stars?

"She'll be eating a lot of hamburgers, trying to get her butt back," her partner Derek Hough told Usmagazine.com Tuesday shortly after the two were given the boot.

Said Krupa, 30: "I definitely worked my butt off -- literally -- and I'd like to get that back, but I love that I'm leaner and stronger."

They collected an impressive 81 out of 90 points for their performances on Monday's episode, landing them in second place during the semifinals. But fans ended up voting them off in the end. (Mya, Kelly Osbourne and Donny Osmond will be vying for the show's coveted mirrorball trophy next week.)"It was a really tough competition being in the top four," Krupa told Us. "I came in as the underdog. I was competing against people with bigger fan bases, and I was just honored to be in the final four. I was competing against amazing dancers. To get to this level, I am blessed and happy to have this opportunity. It definitely exceeded my expectations, and you know, there are three other couples who were great and talented and had huge fan bases, so I knew anything could happen."