Yo-Yo Ma used the waiting time after getting his second coronavirus shot to put on a 15-minute concert

• Cellist Yo-Yo Ma put on a 15-minute concert after getting his second COVID-19 vaccine shot.
• He performed for healthcare workers in a Massachusetts vaccine site during his observation period.
• Exactly a year ago, Ma began uploading performances to help people get through the pandemic.

Renowned cellist Yo-Yo Ma $4 for 15 minutes after he got his second dose of the coronavirus vaccine on Saturday.

Ma performed for workers at the Berkshire Community College in Massachusetts during his post-shot observation period, local outlet $4 reported.

Richard Hall of the Berkshire COVID-19 Vaccine Collaborative told the outlet that Ma wanted "to give something back."

Exactly a year ago, Ma uploaded his first recording under the $4 hashtag as a means to bring people joy during the pandemic.

"In these days of anxiety, I wanted to find a way to continue to share some of the music that gives me comfort. The first of my $4: Dvořák - "Going Home." he wrote in a $4 on March 13, 2020. "Stay safe."

The Eagle $4 this isn't the first time Ma has surprised essential workers by performing. In September, he and pianist Emanuel Ax played a series of surprise pop-up concerts in Pittsfield and Lee, Massachusetts.