PRNewsFoto/AEG Live & Caesars PalaceWho wouldn’t accept a free drink from Rod Stewart?

The singer — who just wrapped up his latest string of performance dates at his Caesars Palace residency, Rod Stewart: The Hitstweeted an invitation for fans to join him after his Aug. 16 show at celebrity chef Gordon Ramsay’s pub for a drink, provided they came wearing a shirt supporting his favorite football team: Celtic FC.

Of course, there was another caveat in the offer: fans had to show a ticket stub from his show, proving they’d been at the gig.

Caesars posted video of Rod enjoying the night with fans at the restaurant. The rocker just completed his fourth year in residency at the casino.

“Thanks to @rodstewart it’s free drinks at @GordonRamsay’s #GRPub for anyone in a @celticfc jersey tonight!,” Caesars tweeted, along with the video.

Before the final show, Stewart reminded fans that he was serious about that pint: “Don’t forget to bring your ticket stub to the pub after Sunday’s show. Pints for concert attendees in @CelticFC jerseys!”

Rod initially extended the invite to his 226,000 Twitter followers on Aug. 14. “To celebrate a very successful @CaesarsPalace run, after Sunday’s show, wear a @celticfc shirt to Gordon Ramsays Pub & I’ll buy you a beer,” he wrote.

This isn’t the last Las Vegas has seen of Stewart. He already signed another deal for 2016.

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