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Dad-to-be Justin Timberlake gave a sweet shout-out to pregnant wife Jessica Biel at the iHeartMusic Awards on Sunday (March 29).

While accepting the innovator award, the Mirrors singer , 34, thanked his wife, calling her his “best friend and favorite collaborator.”

He went on to talk about impending fatherhood.

“I can’t wait to see our greatest creation yet,” the pop superstar gushed. “Daddy’s heading home right now to innovate and learn how to change a poopy diaper and get my swaddle on!”

The 7th Heaven alum, 33 – who recently wrapped filming for The Devil and the Deep Blue Sea – is set to give birth to the couple’s first child any day now.

The couple have maintained a low profile during Biel’s pregnancy, but Timberlake made the official pregnancy announcement in January on his 34th birthday.

“Thank you EVERYONE for the Bday wishes! This year, I’m getting the GREATEST GIFT EVER. CAN’T WAIT. #BoyorGirl #YouNeverKnow #WeDontEvenKnow #WeAreTakingBets,” he Instagrammed.