The entertainment world is mourning the death of Leonard Nimoy, best known for his iconic role as Mr. Spock on the TV and film favorite Star Trek. Nimoy died Friday morning (Feb. 27) at the age of 83 after suffering from end-stage chronic obstructive pulmonary disease. Nimoy announced last year that he had the disease, which he claimed was brought on by years of smoking.

In addition to playing the famous Vulcan on Star Trek, Nimoy had a solid acting career that included starring roles in TV's Mission: Impossible and onstage in Fiddler on the Roof. In addition, he published a pair of books, penned three screenplays, issued three photography books and had seven books of poetry published. Behind the camera, Nimoy earned directing credits for the third and fourth Star Trek films, Three Men and a Baby and The Good Mother among other films.

Nimoy also recorded five studio albums in the late '60s and early '70s, including The New World of Leonard Nimoy that found him covering classic songs like "Proud Mary" (listen below), "I Walk the Line" and "Ruby Don't Take Your Love to Town." He also teamed with Star Trek cohort William Shatner on a disc titled Spaced Out. He also directed and briefly appeared in The Bangles video for "Going Down to Liverpool" and made a cameo in 2011 in an alternate video for Bruno Mars' "The Lazy Song." You can also hear his voice sampled in the Information Society hit single "What's On Your Mind? (Pure Energy)."

As expected with such a varied career, the response to his passing has been wide reaching, even into the rock and metal world. Check out some of the tweets commenting on Nimoy's death below:

Leonard Nimoy Sings "Proud Mary"

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