The "Lazaretto" singer says his former bandmate "doesn't answer her phone" and he has lost touch with her.
An art installation in memory of the late rocker will launch next month in his hometown.
The Foo Fighters frontman has vowed to dedicate a song to the "Shake It Off" hitmaker at every tour stop.
LISTEN: This week's top rock songs, according to the latest Billboard chart.
The rocker is also working on a new album.
Twisted Sister, Extreme, Great White, and Skid Row are teaming up for a blast-from-the-past gig that will be filmed for a cinema release.
The public was warned to "be on the look out" for the band, who commits "musical crimes."
June 9 will be "Les Paul Day" in the cities of New York, Nashville and Waukesha, Wisconsin, where Paul was born.
The Pearl Jam frontman is among the final artists to perform on "The Late Show with David Letterman."
Film producer Casey Neistat goes to Sin City to take a one-of-a-kind look behind one of music's biggest nights.
The Metallica frontman and former Van Halen star Sammy Hagar hosted their second annual Acoustic-4-A-Cure event in San Francisco, and recruited some of their famous friends to perform.
The "Blank Space" hitmaker took home nine trophies, including Top Artist.
Bruce Dickinson has won his battle over the deadly disease, just months after announcing he was undergoing chemo.
The band will grant a rare fan Q&A on Monday via Twitter.
The former Guns N' Roses star has become quite the writer in recent years.
The Slipknot frontman pays tribute to the late bassist on the fifth anniversary of his death.
The rocker is launching a contest to pick an up-and-coming rapper to perform with him on the new music venture.
The former Stone Temple Pilots frontman says he has not gone back to drugs after 13 years of sobriety.
Frontman Sully Erna has been given the all-clear to continue the tour after finding himself desperately short of breath during a concert in New Jersey.
The Pearl Jam frontman entertained fans during the 7th-inning stretch at Wrigley Field.