Leonard Nimoy, best known as Spock from the classic sci-fi TV show, Star Trek, died Friday at the age 83.

In addition to his widespread success as an actor, Nimoy was an accomplished director, a writer and poet, and a photographer. He also tried his hand at singing and songwriting, releasing five albums on Dot Records. During that time, he covered songs like Joni Mitchell’s “Both Sides Now” and the Pete Seeger/Lee Hays song “If I Had a Hammer,” made famous by Peter, Paul & Mary.

Nimoy was suffering from end-stage chronic obtrusive pulmonary disease at the time of his death. He is survived by his wife Susan, his two children and his stepson, and several grandchildren.

In his honor, here’s “Both Sides Now”: