Well, that didn't take long.
Just hours after landing in Singapore with a gaggle of his buds ... Travis Kelce was firmly planted in a box suite for Taylor Swift's "Eras" tour show -- dancing his face off to at least one of her biggest hits!!
Check out video shot by a fan inside National Stadium ... as Taylor was belting out "Look What You Made Me Do" onstage -- Kelce was getting after it in his seat.
