Posters of them covered the bedroom walls of tween girls everywhere back in 1997 thanks to their hit MmmBop.
But two decades later Hanson are causing quite the stir by throwing some serious shade at their teen hunk successor Justin Bieber.
Biebs is one of the most famous singers in the world, but he hasn’t won over Isaac, Taylor and Zac.
During an interview with Hit 107 FM, the brothers played a game of Whose Song is it Anyway?
A musical version of Whose Line is it Anyway, players have to guess song titles and artists.
The trio failed to recognise the song or artist of Despacito, admitting that they don’t listen to much modern music.
What’s more, when they were told it was by Luis Fonsi, Daddy Yankee and Justin Bieber, they couldn’t hide their dislike.
“Can I just say I’m glad I didn’t know what that was,” they said.
Then going even further, Zac then compared Biebs’s music to a sexually transmitted disease...
“I prefer not to get any venereal diseases so whenever Justin Bieber gets near me or near my ears,” he slammed. “It’s just ear infections, they’re terrible!”
Zac was kindly enlightened with the fun fact that most koalas have chlamydia.
Taking yet another swipe at the popstar, he mused, “It’s like hanging out with a koala,” he said.
“Chlamydia of the ear, it sucks”.Tell us how you really feel.