No, Jessica Biel isn’t pregnant.

She appeared on the Ellen DeGeneres Show on Thursday and laughed off all rumors that she and Justin Timberlake, her husband, were having their second baby.

“I don’t even know what to say about these things,” Biel said. “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 jokes. “He usually knows more that I do about everything.”

Their first baby, Silas, will be one-year-old this April. She says he is already “very musical” and is nurturing his musical talent already.

“He is really, really in love with Erykah Badu. He loves her music. He eats to her music — he loves that,” she says, attributing his jamming to the “40 or 50” shows on her husband’s 20/20 Experience world tour she attended while expecting.

“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.”

Biel adds: “That’s genius, if you ask me. Genius level.”

Image Credits: Stephen Lovekin/ Getty Images Entertainment/ Thinkstock Photos