Nineties boy band Hanson attended "The Hangover Part III" Los Angeles premiere on Monday night. The group consists of three brothers: Isaac on guitar, vocals, and piano; Taylor on keyboards, piano, guitar, drums, and vocals; and Zac on drums, piano, guitar, and vocals.
The trio is best known for their 1997 hit song "MMMBop" from their debut album, "Middle of Nowhere," Fun fact: that album garnered three Grammy nominations for Record of the Year, Best New Artist and Best Pop Performance by a Duo or Group with Vocal.
The group hails from Tulsa, Ok. When they premiered their hit song over 15 years ago, Zac was 12, Taylor was 14, and Isaac was 16. They are now 27, 30, and 32, respectively.
Check out more photos of the group, which has sold over 16 million records worldwide, over the years...