Musician Josh Kelley , who’s married to actress Katherine Heigl, was so nervous before singing “The Star-Spangled Banner” at the June 28 Chicago Cubs–White Sox game, he scribbled the opening lines on his hand, LIFE & STYLE WEEKLY reports.

KATHERINE HEIGL’S HUBBY GETS STAGE FRIGHT

Later that night, Josh, 28, shared his crib notes with Jeremy Piven and Billy Dec, the owner of Chicago’s Rockit Bar & Grill, where fans and friends gathered for a fund-raiser to benefit the Piven Theatre Workshop, run by Jeremy’s mom. “People complimented his singing, so he pulled it off!” the insider tells Life & Style.

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