Remember these guys?

Zac, Isaac and Taylor Hanson, left to right, arrive at Radio City Music Hall in New York, for the 40th annual Grammy Awards show, Feb. 25, 1998. (Todd Plitt/AP)

For fans of a certain age, Hanson will always be the fresh-faced teen trio who "MMMBop"-ed their way into the hearts of pop music lovers in the late 1990s. But in the decade-and-a-half that followed their smash debut, the Hanson brothers - oldest brother Isaac, middle brother and lead singer Taylor and youngest brother Zac -  have grown into full-fledged family men who now look like this…

The Hanson brothers with their wives and children. (Erin Patrice O''Brien/Corbis)

Ready for a bigger Hanson shocker? Try this: Each brother met his future wife at a Hanson concert.

"It was kind of like, 'Oh, this is, this is what happens in movies…this doesn't really happen,'" Nikki Hanson said, remembering her meet-cute with husband Isaac.

Learn more about their unlikely love stories Friday on "20/20: HollyWed" at 10 p.m. ET. Watch a sneak peek below.