AceShowbiz -

Jessica Biel shoots down rumors suggesting that she's expecting baby No. 2 with Justin Timberlake. The actress addressed the pregnancy reports during her recent visit to "The Ellen DeGeneres Show" to promote her kid-friendly restaurant Au Fudge.

"I don't even know what to say about these things," the mother of one said about the online chatters to Ellen DeGeneres. "I feel like, 'Man, I thought I was doing good with my yoga practice.' I thought I was in the gym, but no. I have a gut apparently."

"I heard that and I called Justin. I was like, 'Are we [having another baby?] No. Oh, okay. Cool,' " she continued with laugh. "He usually knows more that I do about everything."

Biel also talked about her 11-month old baby boy, Silas. She said he's very musical, "He is really, really in love with Erykah Badu. He loves her music." She added, "He's gotten, just recently, these drum sets and he likes to drum, he likes to play his piano and he likes to drum with his head." She quipped, "That's genius, if you ask me. Genius level."

While Silas was still in her belly, she listened to her husband's music all the time. "I listen to his music probably more than I should," she opened up. "It's maybe slightly creepy. I love his music. Silas loves his music. I want him to hear it a lot. We listen to it in the car a lot."