By Teresa Jue
January 06, 2015 at 02:47 PM EST

Bradley Cooper turned 40 on Monday, and he celebrated by showing off his prowess at the air guitar on the Tonight Show with Jimmy Fallon.

Douglas Gorenstein/NBC/NBCU Photo Bank via Getty Images[/caption]

Clad in an Afro gifted by Fallon for this very special day, Cooper admitted that his musical talents rely on an invisible instrument.

“When I was a kid I had a lot of time on my hands, and there’s this one song by Neil Young. I don’t know if everybody knows this, and I’m sort of proud that I know it. It’s just the guitar solo from ‘Down by the River,'” Cooper said. “To air guitar to it is so meaningless … but I’d love to give you a little taste. It’s long!”

Watch Cooper get all up in the audiences’ faces with his shredding, which probably made one woman’s day.

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