R.I.P.

The 59-year-old’s family confirms her passing from aggressive brain cancer ahead of the band’s farewell tour.

‘Palisades Park’ and ‘Tallahassee Lassie’ hitmaker was respected by Robert Plant, Mick Jagger and Stephen King.

Tyler's long career also included the hits "It's a Heartache" and "Holding Out for a Hero."

A look at those we've lost.

The group's founding singer also co-wrote most of their biggest hits, including "Macho Man," "Y.M.C.A." and "In the Navy."

He helped curb the band's appetite for destruction during their biggest years.

He was the Grammy-winning singer of "Spinning Wheel" and "You've Made Me So Very Happy."

For six decades he was driven by a passion for discovery and a steadfast belief in the power of music.

He's been credited with the idea of adding horns to the rock-band concept.

Palmer contributed to many of Jethro Tull's greatest albums, including 'Aqualung' and 'Thick as a Brick.'