Remembering Jeff Labar Gallery Launch Gallery Remembering Jeff Labar Launch Gallery Gallery Getty UPDATE

12:32 PM PT -- 7/15 -- A rep for the band tells TMZ ... "Heavy hearts cannot begin to describe the feeling of losing our brother Jeff. The bond between us over decades of creating music and touring the world is something that we as a band uniquely shared."

UPDATE

The rep added, "Those memories with Jeff will be forever alive in our hearts. It’s unimaginable that one of our band brothers has left us. We’re sending his wife Debinique, his son Sebastian, family, and friends our deepest condolences. Jeff’s memory and music will be with us forever."

Legendary guitarist Jeff LaBar, famous for playing in the rock band "Cinderella," has died.

Jeff's first wife, Gaile LaBar-Bernhardt, tells TMZ ... Jeff was found dead Wednesday inside his apartment in Nashville.

We're told Jeff had gone off the grid the past few days, with friends and family unable to reach him, so his ex-wife went to go check on him ... and that's when she found him dead.

The cause of death remains unclear.

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