Lou Reed surprised fans at the Metric concert in New York City’s Radio City Music Hall last weekend when he guest starred in two of the band’s songs.

As reported by Paste Magazine, Reed not only made a guest appearance on stage with the band but also collaborated with Metric on their most recent album Synthetica. Below are fan videos of the two songs Reed performed with the band. The first song, “The Wanderlust” can be found on the previously mentioned album, Synthetica. And the second, “Pale Blue Eyes” is a song recorded originally by Lou Reed.