Adam Levine Spoils the Show!

‘The Voice’ coach ruined an NBC presentation, insiders tattle.

Adam Levine Spoils The Show!
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Behind Adam Levine’s toothy grin lurks Hollywood’s newest diva!

The Voice coach aggravated onlookers with his bratty behavior during a recent appearance in New York City, sources said.

“He was acting up like a petulant kid in front of the crew and other judges,” a mole said of NBC’s Upfronts presentation on May 13.

The Maroon 5 rocker, 40, was such a nightmare that bosses used a stand-in during a second rehearsal to avoid the hassle, the snitch revealed.

“All in all, it was a complete disaster,” tattled the source. “There are few people looking forward to crossing paths with Adam again!”