Peter Yarrow of the early '60s folk trio Peter, Paul and Mary, passed away at the age of 86 after a four-year battle with cancer. The group was one of the first to have a hit with a song by Bob Dylan; their 1963 cover of "Blowin' in the Wind" reached No. 2 and won a pair of Grammys for Pop Vocal Group and Folk Record.

Brent Hinds, the former singer and guitarist of the heavy metal band Mastodon, has died. The 51-year-old musician was killed in a motorcycle crash around 11:35 p.m. ET on Aug. 20 in Atlanta, according to Atlanta NBC affiliate WXIA.

In this brief, at times explosive Guitar Player interview, Hinds got to the heart of what mattered most to him in music