Ozzy Osbourne performs during half-time of the 2022 NFL season opening game between the Buffalo Bills and the Los Angeles Rams in 2022. Harry How/Getty Images Share on Facebook Share on X Share to Flipboard Send an Email Show additional share options Share on LinkedIn Share on Pinterest Share on Reddit Share on Tumblr Share on Whats App Print the Article Post a Comment Heavy metal pioneer Ozzy Osbourne died of a heart attack, according to a death certificate reviewed Tuesday by The New York Times.