Watch Jimmy Fallon and Amanda Seyfried Try to Keep a Straight Face During This “Mamma Mia” Duet

Ahead of Mamma Mia! Here We Go Again‘s July 20 release date, Amanda Seyfried stopped by The Tonight Show last night, where she and Jimmy Fallon blessed the audience with an ABBA duet.

Even if you haven’t seen the first Mamma Mia (it’s on Netflix if you want to catch up), you’ve definitely heard a few of ABBA’s hits—like “Dancing Queen” and “Mamma Mia.” But Fallon and Seyfried’s rendition might sound just a *touch* different from the originals, because they Google-translated the lyrics from English to Slovenian…and then back. The end result? “Dancing Queen” becomes “Hula Prince,” and “Take a Chance On Me” becomes “Steal My Sad Clocks.” The end product is nonsensically hilarious, and Jimmy Fallon can’t keep a straight face.

You had one job, Google Translate.