LOS ANGELES, July 18 -- Taylor Swift's father, Scott Swift, is reportedly "doing fantastic" after undergoing a quintuple bypass surgery - and true to form, the Grammy-winning singer was right there with him through it all.

According to the New York Daily News, the 73-year-old had the major heart operation more than a month ago, not due to a heart attack, but because of something doctors spotted during a routine checkup.

A spokesman for Swift confirmed to the Daily News that the singer, 35, along with her mother Andrea and younger brother Austin, were by Scott's side during his surgery and recovery.

It's a rare update on the health of the Swift family, who've quietly weathered personal health battles over the years.

In 2015, Taylor rev...