U2's Longtime Tour Manager Dennis Sheehan Dies

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Bono and Adam Clayton of U2 perform onstage during the U2 iNNOCENCE + eXPERIENCE tour opener in Vancouver at Rogers Arena on May 14, 2015 in Vancouver, Canada.  

U2's longtime tour manager, Dennis Sheehan, was found dead Wednesday (May 27) morning in his hotel room in West Hollywood. 

"With profound sadness we confirm that Dennis Sheehan, U2's longstanding tour manager and dear friend to us all, has passed away overnight. Our heartfelt sympathy is with his wonderful family," Arthur Fogel said in a statement. 

"We've lost a family member, we're still taking it in. He wasn't just a legend in the music business, he was a legend in our band. He is irreplaceable," Bono said on U2.com. 

U2 will pay tribute to Sheehan at Wednesday night's concert, according to a source: "Dennis was the heart and soul of the organization."

Paramedics were reportedly called to his room after he was found unresponsive in the early hours of the morning; shortly thereafter, he was reportedly pronounced dead at the scene.

Born in 1946, Sheehan grew up in Ireland and played in a band from age 13 to 19. During his late teens, Sheehan moved into the behind-the-scenes music world, putting in time at Arista in London and working with everyone from Led Zeppelin to Patti Smith.

Prior to the release of U2's War album in 1983, Sheehan joined forces with the band and worked with them ever since.

U2 will play the second of five concerts in L.A.'s The Forum tonight.