WATCH: The Gay Stars of Kelly Clarkson's New Video Get Engaged on Set

Kelly Clarkson is the latest pop icon to shed light on the fight for marriage equality. The artist's new music video for her heartbreak-turned-hopeful hit, "Heartbeat Song," tells the love stories of couples, straight and gay. The same-sex pair in the video eventually exchanges rings, and sure enough, the couple got engaged in real time during filming. When Chad Laboy proposed to fiance Zac Woodward on set, Woodward was just a bit shocked. His response? "Of course. Duh!"

Watch the proposal here:

"Heartbeat Song" is the first single from Kelly's upcoming sixth studio album Piece By Piece, due out March 3. Check out Kelly getting glammed up behind the scenes and watch her response to the proposal:

Oh, and the video: