7:33am PT by Gil Kaufman, Billboard
Shawn Mendes, James Corden Sing '90s and Current Hits in 'Late Late Show' Riff Battle
Shawn Mendes and James Corden agree on one thing: The music of their youth is the best.
On Wednesday night's Late Late Show, Mendes, 18, just had to interrupt when Corden once again hit his "This Is How We Do It" button during a behind-the-desk dance party.
"I just noticed you never play new music," said Mendes. "You know, Backstreet Boys [on the show] yesterday. 'This is How We Do It.' It's just old stuff all the time."
Corden corrected his youthful guest by reminding Mendes that "everybody knows music was better back then than it is now." And then it was on.
Mendes challenged Corden to a "Better Then/Better Now" riff-off, with a cappella backing from The Filharmonic. The battle was fierce, invoking hits by Calvin Harris, the Spice Girls, Kriss Kross and Sia.
In the end, though, the pair spanned the generation gap by mashing up a TLC classic with Mendes' "Stitches."
Mendes also performed an emotional take on his current single, "Mercy." Watch the videos below.
This article originally appeared on Billboard.com.