The Hanson brothers are clearly NOT Justin Bieber fans.
The brotherly trio, known for their 1997 hit "MMMBop", made the brutal comparison while joining hosts Amos Gill, Cat Lynch and Angus O'Loughlin for a game of "Whose Song Is It Anyway".
How rude! Hanson slammed Justin Bieber and his music in a new interview, comparing the pop star's music to a sexually transmitted disease.
"I don't know the words so I say "Dorito" / I don't know the words so I say "Dorito" / I don't know the words so I say "Dorito" / Despacito", he sang, adding, "I ate a burrito / I just want a burrito".
Even though Hanson may think the song is a total miss, "Despacito" is now the biggest song in the world, having gone 34 times platinum in the USA alone.
"Here's the deal with this game", one of the brothers said, "we're gonna lose".
He went on to liken Bieber to a koala because most of the animals have chlamydia.
Another Hanson member then said: "Chlamydia of the ear, it sucks".
"It's just ear infections, they're awful", Zac piled on.