Kevin Mazur/WireImage.comNow that newlyweds Pete Wentz and Ashlee Simpson-Wentz have finally confirmed they're expecting, papa-to-be Pete is ready to open up about the happy news.
"I'm excited to be a dad," he told me at the Op clothing launch party Tuesday night, while admitting he was initially scared. "I'm a genuinely nervous person in general. The first time I ever went to the doctor's office and heard the heartbeat, I felt totally content and at peace with everything. It feels good."
Pete, who came without Ashlee, has a lot to celebrate these days. Besides his new marriage and baby on the way, the Fall Out Boy rocker has an MTV show in the works and turns 29 this Thursday. But he got an early surprise at the bash...
Pete was presented with a huge cake and serenaded by partygoers with an early "Happy Birthday." Wilmer Valderrama, featured alongside Pete in the Op campaign, helped him blow out his candles.
Also on hand to celebrate the new ads: Kristin Cavallari, Rumer Willis, Corbin Bleu and Kim Kardashian.