dierks bentley performs block party
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Watch Dierks Bentley Go Undercover in a Bluegrass Band

Dierks Bentley surprised us all over the weekend, going undercover at the Perfect Vodka Amphitheater in West Palm. Bentley was scheduled to take the stage at a little after 9:00 pm, following openers that included Jon Pardi and Cole Swindell.

With little suspect from the fans, Bentley hit the stage about 2 hours earlier. Wearing a big hat and dark sunglasses as a disguise, Bentley jammed along with the "Bolo Boys Bluegrass Band" as the crowd grew. Bentley fit right in with the bluegrass band.

Only a couple astute fans seemed to notice. One called Bentley out on Twitter:

The star has yet to respond to the tweet, but his antics have delighted fans who are just finding out.

Dierks Bentley played with the Bolo Boys for 2 hours and 20 minutes, essentially opening his own show.

No stranger to surprises, Bentley unexpectedly produced a star-studded concert earlier this year. He invited several other singers on stage with him to perform "Drunk on a Plane."

Bentley's currently on tour, performing songs from his newest album Black. He has upcoming shows in New York, Pennsylvania, North Carolina, and Wisconsin. ICYMI, he recently performed the National Anthem at the Stanley Cup Finals. Unlike his bluegrass performance, his rendition got mixed reactions.

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