Metal's founding fathers may be saying goodbye, but they're not leaving quietly
"Glenn was the one who started it all," Henley says of Eagles singer-guitarist. "He was the spark plug; the man with the plan"
'Elvis Presley – The Album Collection' contains 57 albums and three discs of rarities, along with 300-page hardcover book
Album will come out later this month
Track will appear on group's upcoming album 'A Head Full of Dreams'
"Geezer [Butler] didn't particularly want to do another album," Tony Iommi says of bassist
Eric Church, Brandon Flowers, Tom Morello, Sheryl Crow and others also set to perform
Record collects singer's first recordings for Columbia Records
Track will appear on group's upcoming 'Straight Outta Bubank' EP on Record Store Day
Also, band books pre-Super Bowl gig in San Francisco