No amount of pain could stop Maria Menounos from showing off her new moves!

Despite suffering a minor rib injury during rehearsals, the Extra host, 33, and pro partner Derek Hough, 26, wowed judges with their Bonnie and Clyde inspired quickstep on Dancing With the Stars Monday. "Injury or not, I'm going to be a tough Greek and I'm going to kick some [butt]!" Menounos said prior to their performance.

The duo impressed judges Carrie Ann Inaba, 44, Len Goodman, 67, and Bruno Tonioli, 56. "It was nearly spotless," Tonioli told Menounos. "You just missed a step in the run, but it was near perfection.

Added Inaba: "Talk about change from last week to this week! Huge improvement."

PHOTOS: Worst DWTS costumes ever

Menounos was thrilled with her performance, telling co-host Brooke Burke-Charvet, 40: "I feel great. I had fun. I did my best." The two scored 25/30, as did William Levy and pro partner Cheryl Burke. "We powered through!" Menounos said.

Classical singer Katherine Jenkins and Disney Channel star Roshon Fegan tied for first place Monday, with 26/30 points. Tennis champion Martina Navratilova earned the lowest score of the evening with 17/30 points.

Tell Us: Did Maria Menounos show signs of strain during her quickstep?