Hanson's Acoustic Performance of 'MMMBop' Will Take You Way Back

Was your VCR on record? Because Hanson performed on TV last night!

Isaac, Taylor and Zac appeared on Greatest Hits, ABC's new variety series that brings together acts from the '80s, '90s and '00s with today's hitmakers for performances of songs that defined eras along with unexpected duets. A late-'90s-themed episode on Thursday brought together Meghan Trainor and the Backstreet Boys, Tori Kelly and Jewel, plus your favorite brother trio performing their breakout chart-topper, "MMMBop," from 1997 in a lovely acoustic rendition.

We're happy to report their harmonies are still on point. Not that anyone doubted they would be—this ain't no Jonas Brothers.