Zedd and Alessia Cara have officially taken over with their hit single “Stay.” The single has been riding the top of the charts for both Billboard's Hot 100 and US Hot Dance/Electronic Songs for quite some time now.

During John Mayer's show at the Echoplex in Los Angeles as part of the Bud Light Dive Bar Tour, John Mayer decided to surprise his fans by bringing out Alessia Cara. Instead of playing one of John Mayer's songs, John Mayer performed “Stay” alongside Alessia Cara to their unsuspecting fans.

The entire show was streamed on Facebook, but one YouTube fan was able to upload the performance on YouTube as seen below.