(CNN) There was a cameo from a singing orthopedic surgeon Sunday as millions watched "The iHeart Living Room Concert for America" on Fox.

The man in scrubs performing John Lennon's " Imagine " was Dr. Elvis Francois , a resident at the Mayo Clinic in Rochester, Minnesota, accompanied by Dr. William Robinson on the piano.

Francois' cameo followed a video of a nurse begging viewers to abide by social distancing guidelines because she's been working hours with critically ill patients.

A video of his cover of the Lennon classic went viral earlier this week, which has garnered more than 356,000 views on Instagram.

"In life, there are so many things that divide us. Religion, race, politics, social status and many more....But today a global pandemic brings us all together as one," his post read.

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