We first met PEOPLE's Hottest Bachelor when he played good-guy A.C. Slater on Saved by the Bell. He's since moved on to Dancing with the Stars and is now co-host of Extra's weekend edition and star of Broadway's A Chorus Line. Still, Lopez, now 35 – here recreating Mark Wahlberg's famous "Marky Mark" pose – says he wasn't always so fit: "I was a fat, fat baby. I looked like a sumo wrestler. My mom had to pull the fat folds apart when she bathed me!"