Yes, it's a rather short rendition, but still... That's Chris Martin sitting at the piano as he sings JB's latest hit single:
The moment happened in LA during iHeartRadio's sold out Alter Ego show at The Forum.
You can tell from the crowd's reaction that plenty of people recognized what Chris was singing.
I love when artists acknowledge each other during performances - even in super-small doses. :)
PHOTO: Getty Images