Taylor Swift says her father Scott Swift came out of quintuple bypass surgery cracking jokes ... and was the funniest he's ever been during a 15-minute comedy routine from his hospital bed.

Taylor shared the positive health update on her father during her appearance on the "New Heights" podcast with boyfriend Travis Kelce and his brother, Jason Kelce. Getty

She says Scott learned he had 5 blockages in his heart after doing a resting stress test ... and doctors scheduled the surgery for the next day ... and she, her mother and her brother rushed to his side, despite Scott saying they didn't need to be there.

Taylor says the three of them took shifts in the ICU while Scott went under the knife ... and she says when he woke up, he was in a great mood, and joked about havin

See Full Page