SARATOGA, Calif. — Authorities say a man jumped to his death onto the stage of a Northern California concert in front of hundreds of horrified music fans.

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The band, the Swell Season, was playing an outdoor show at the Mountain Winery in Saratoga on Thursday night when the jump happened.

Santa Clara County Sheriff's spokesman Sgt. Rick Sung says authorities are treating the death as a suicide. The man's identity has not been released.

Sung says the man left a friend in the audience around 10 p.m. and soon appeared on a roof that covers the stage. Witnesses say he jumped off the roof and landed on stage near the band's lead singer Glen Hansard.

The jumper was pronounced dead by a doctor who spent an hour trying to revive him.

The band extended its sympathies in a MySpace post Friday.