Jessica Biel and Justin Timberlake

We speculated on Jessica Biel's growing baby bump for months until she could no longer hide the fact: she was expecting a baby with Justin Timberlake!

Now, the much-anticipated #babyoftheyear has arrived, and it's a BOY! Biel has given birth to the couple's first child, son Silas Randall.

No other details have been made available, but the couple's reps exclusively told People that "mom and baby are doing well and dad is 'ecstatic'."

While the super-private couple never officially announced the pregnancy, JT confirmed the news when he posted a sweet baby announcement on his birthday. "This year, I'm getting the GREATEST GIFT EVER. CAN'T WAIT. #BoyOrGirl #YouNeverKnow #WeDontEvenKnow #WeAreTakingBets," the singer shared on Instagram.

During her pregnancy, Biel was spotted out and about in L.A., keeping healthy and fit with prenatal yoga. She was also busy planning for the opening of her organic kids-themed restaurant, Au Fudge, which will serve rainbow-colored items on the menu.

We are beyond excited for these two first-time parents, who we know will make an amazing mom and dad.

Congratulations to JT and Jessica!

Sherry Huang is a Features Editor for She loves collecting children's picture books and has an undeniable love for cookies of all kinds. Her spirit animal would be Beyoncé Pad Thai. Follow her on Twitter @sherendipitea.

Photo of Jessica Biel and Justin Timberlake via Shutterstock.