Norway's breakthrough pop duo Nico and Vinz performs on NBC's "The Tonight Show Starring Jimmy Fallon." Watch the video!

The Norwegian duo behind the biggest song on the radio is bringing its musical flavor to the biggest show in late night.

Duo Nico and Vinz, which holds the #1 positions on Mediabase’s pop airplay chart and Billboard’s Radio Songs chart with “Am I Wrong,” appears on the musical guest of Monday’s “The Tonight Show Starring Jimmy Fallon.”

Unknown to American audiences just six months ago, the act is now making its second major late show appearance in two months. It entertained audiences on the set of ABC’s “Jimmy Kimmel Live” in early June.

The performance on NBC’s “Tonight Show,” which comes after host Jimmy Fallon sits down with Kate Hudson and Ellar Coltrane, assures even more exposure for a pop act that has become inescapable this summer.

In advance of the broadcast, which airs at 11:35PM ET Monday, NBC issued photos from Monday afternoon’s taping. A video of the performance is also below.