Neil Young and Pegi Young

Neil Young and Pegi Young arrive at The 2012 MusiCares Person of The Year Gala Honoring Paul McCartney at Los Angeles Convention Center on February 10, 2012 in Los Angeles, California. 

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Sad news from the Neil Young camp: The Rock and Roll Hall of Famer has filed for divorce from Pegi Young, his wife of 36 years.

The Youngs were frequent musical collaborators throughout their marriage. They have often toured together over the years and even performed together during the 1994 Academy Awards.

According to Rolling Stone, the petition for dissolution of marriage was filed by Neil Young in San Mateo, Calif., on July 29. A hearing is scheduled for Dec. 12.

More on Neil Young:

The couple first met when Neil visited a diner near his California home, where Pegi was working as a waitress.

Neil Young has been touring throughout 2014 -- both on his own and with Crazy Horse -- promoting solo effort A Letter Home (released April 19 via Third Man) through concerts and quirky appearances like this one on The Tonight Show alongside Jack White.

Pegi released her self-titled solo debut in 2007 and has since put out two more, in addition to touring frequently on her own. Both she and her former husband are scheduled to perform at Farm Aid in Raleigh, N.C., on Sept. 13. 

In 1986, the couple co-founded the Bridge School to provide educational opportunities for students with severe physical impairments, with their son Ben in mind, who suffers from cerebral palsy.