'Dancing With the Stars': Sean Lowe debuts with fiancee Catherine Giudici and his parents cheering

For their first dance on "Dancing With the Stars," "Bachelor" Sean Lowe and partner Peta Murgatroyd did a foxtrot to Huey Lewis' "Power of Love."

Sean was definitely flashing his pearly whites and trying his best, but he was also pretty stiff at times. However, there is room to grow -- Sean wasn't completely devoid of talent or potential. We could see him getting better as the season goes on.

The judges were nice, though not overly gushing. "I liked it. I didn't like it a lot, but I liked certain parts ... your posture was good, I liked your footwork. Your dancing needs to be more refined," says Len. Bruno calls it "hunky and chunky and very masculine," then compares it to a Chippendales version of a ballroom dance. Carrie Ann adds, "I liked it rough," which ... down, girl. But she liked his "fearless exuberance."

Did you spot Sean's new fiancee Catherine Giudici in the crowd with his parents? She looked smashing in a bright red dress.