Jon Hamm, who's made it no secret that he's a Bad Bunny superfan, was spotted attending the reggaeton superstar's concert residency in Puerto Rico.

The actor previously gushed about his budding bromance with the Grammy Award winner during an appearance on TODAY.

Bad Bunny's weekend concert in Puerto Rico drew a bunch of A-listers -- among them Jon Hamm and Becky G -- who danced their buns off during the show!

The 54-year-old Mad Men actor was spotted at Bad Bunny’s residency over the weekend in a bucket hat, a matching Hawaiian set, ...

BAD Bunny fans were left gobsmacked after spotting an A-List movie star at the singer’s latest gig. Fellow concert-goers at ...

Jon Hamm has made no secret of the fact he's a Bad Bunny superfan. Concertgoers spotted him dancing the night away at a ...