Alicia Keys gave her fans a mini performance Saturday night, singing by the piano with pop singer Charlie Puth. The two artists attempted to sing Babyface’s 1989 hit Whip Appeal, but there was just one problem. They forgot most of the lyrics.

After just a few lines into the song, Keys can be heard saying, “…don’t know that part, forgot.” The pair jump to the hook, where they hit all the right notes, but after that it continues to go downhill.

Keys and Puth have not announced it they will be collaborating on a song, but both can be seen this season on The Voice.

Check out the video below.

😂😂😂 studio vibes 🎙🎙🎹🎹 @charlieputh @babyface

A video posted by Alicia Keys (@aliciakeys) on Aug 27, 2016 at 4:48pm PDT