Founding member of the Doors, Ray Manzarek, died yesterday in Germany after a long battle with cancer.

The highly gifted and influential musician will be terribly missed.

Rockers are reacting on twitter, and ultimateclassicrock.com has all the heartfelt tributes and exclamations of grief that so many of Ray's fellow musicians have expressed, including Alice Cooper, who tweeted, "Absolutely stunned by the loss of my old friend Ray Manzarek".

R.I.P. to one of rock's greatest musicians and icons.