Hanson Performs on 'Dancing With the Stars' (Video)

Ready for some '90s nostalgia?

The brothers Hanson are all grown up and performed their 1997 hit "MMMBop" on ABC's "Dancing With the Stars" on Monday night.

During the band's performance, the professional dancers on the ABC reality show performed to the song.

Hanson also acted as the house band for the night, playing songs like Lionel Richie's "Hello" as the show came back from commercials. The group returns to Dancing With the Stars on Tuesday to perform a song from their new album.

Watch their performance of "MMMBop" below, and read a recap of Monday night's show here.