The music legend was wandering through his hotel when he heard a familiar song.

By Jon Wiederhorn

(RADIO.COM) – Stevie Wonder was wandering through the lobby of the Anaheim Marriott hotel last weekend when he heard an unknown busker, Grayson Erhard, strumming away his song “Superstition” on guitar. The superstar could easily have passed by the musician without a nod, but instead Wonder joined Erhard for a duet.

READ MORE: UPDATE: Woman Accused of Starting Fawn Fire Was Boiling Bear Urine to Drink

Erhard later posted video of the performance on Facebook. Though he was initially flustered by the sudden appearance of the music icon, even apologizing for forgetting the words to the second verse of the song, Erhard pulled himself together and delivered a quality performance with the music icon.

READ MORE: UPDATE: Moratoriums on Canceling Fire Insurance for California Residents Only a Temporary Fix

Wonder was in Anaheim for the National Association of Music Merchants (NAMM) conference.

Watch the duet below:

MORE NEWS: Retailers Warn Supply Chain Delays Could Wreak Havoc On Bay Area Holiday Shopping Season
©2017 CBS Local Media, a division of CBS Radio Inc. All rights reserved.