With all due respect to Madonna and Tay, hands down the cutest couple at last night's iHeartRadio Music Awards was Justin Timberlake and Jessica Biel. Never mind that Biel wasn't even there. The expectant actress stayed at home to rest up — she's reportedly due with the couple's first child any day now — but that didn't stop her smitten pop star husband from making her seem like the most important woman in the room/on the planet. Timberlake issued an aw-inducing tribute to his wife during his acceptance speech for the Innovator Award. "You can't have innovation without creation, so finally, I want to thank my best friend, my favorite collaborator — my wife, Jessica, who's at home watching," he told the crowd at Los Angeles' Shrine Auditorium. "Honey, I can't wait to see our greatest creation yet." Baby Timberbiel also got a mention. "Don't worry, Daddy's heading home right now to innovate by learning how to change a poopy diaper and get my swaddle on," the singer quipped. Sheesh. The man can even make Pampers explosions sound sexy.