From the Boston Herald:
There was an auction held with the highest bidder getting to sing with the Pats tight end, who just came to terms on a new six-year $54 million extension. The winning bid was $2,500, and a woman was on stage as Gronk ripped into “Sexy and IKnow It” by LMFAO. He moved around on stage, swivelled his hips, and danced a bit as he sang. There were no signs of trouble with his ankle, which he had arthroscopic surgery on following the Super Bowl.
And here’s the pictures.
Looks like Gronk had a great time.