Forget Dancing with the Stars, champ Drew Lachey has a much more prized title now: Daddy.

Lachey and wife Lea, both 29, welcomed their first child, a baby girl, Thursday in Los Angeles, his rep announced. No details were released about the newborn--including moniker, vital statistics or toe-tapping prowess--but Us Weekly reported that child is named Isabella.

"Mom, dad and baby are all happy and healthy," publicist Holly Shakoor said in a statement.

As are Uncle Nick and the babe's grandparents.

"We are thrilled and very excited about it all!" Lea's father, Dan Urra, who flew to L.A. earlier this week with his wife to be with their delivering daughter, told Us.

Drew Lachey, who formerly crooned in 98 Degrees along with big bro Nick, has known the former Lea Dellecave nearly as long before tying the knot in October 2000. The two met in fifth grade, were high school sweethearts and, unlike Nick, even maintained their romance amid a professional partnership: Lea Lachey is a choreographer and dancer who toured with 98 Degrees in both capacitites.

And her coaching apparently paid off.

Last month, Drew Lachey and dance partner Cheryl Burke took home the coveted--if, as he noted, "ugly"--trophy as winners of ABC's second season of Dancing with the Stars. During the competition, he even credited his pregnant wife with "helping me with my posture, my feet," per People.

As for his post-victory plans, Lachey was already looking forward to some quality hoofing time with his sure-to-be daddy's girl.

"In a couple of years my daughter will be cutting a rug around me," he said at the time. "I'll hold her hands, and she'll be dancing on my feet. I'm looking forward to that."

Burke, meanwhile, said she expects her partner to be as proficient at fatherhood as on the dance floor.

"He's going to be a great father," she told People. "He will not spoil his child, that's for sure. But he's so loving and he's going to love his baby like no other."

While Lachey is priming up for a major bout of diaper duty, he will get a temporary, and likely welcome, reprieve next month.

The new papa has just been named cohost of the Miss USA 2006 Pageant on Apr. 21 alongside Access Hollywood's Nancy O'Dell. The event airs live from Baltimore on NBC.