Columbia University’s football team is so bad that even the band geeks are mocking it.

In a shocking turn of events, the Ivy League university’s marching band bullied the jocks on the football team by changing the words to the winless team’s 100-year-old fight song to a string of insulting phrases, including “why are we even trying” and “we really suck.”

The band — which apparently is even more upset about the team’s 0-9 record than the players are — performed the mocking number as the humiliated Lions slunk off the field after their 62-41 loss to Cornell last Saturday.

“We always lose, lose, lose,” began the parody of the “Roar, Lion, Roar” fight song. It ended: “But we take solace in our booze.”

It also included lines like: “We all were winners at the start, but four years has taught us all the value of just giving up, cause we really suck . . . Why are we even trying?”

The song stung the players like a blind-side tackle.

“Our football players, coaches, alumni and parents are extremely hurt, disappointed and angry by the band’s behavior at Cornell,” Athletic Director M. Dianne Murphy said during the day — adding the band would have to face the music by being banned from tomorrow’s game.

“Because of the band’s disrespect for the feelings and efforts of their classmates and fellow Columbians, we believe that allowing the band the opportunity to perform . . . on Saturday undermines the university’s institutional support for our football team.”

But late last night, the university’s newspaper, the Spectator, said the school changed its tune and will let band perform after all.

Some on the Morningside Heights campus blamed the fallout on the band’s poor timing, which came in the middle of the team’s worst win drought since the 1980s.

But others expressed mixed feelings.

“Like everybody probably says, Columbia isn’t known for its athletics, so [the team’s] 0-9 [record] didn’t surprise me,” said one school administrator.

“But that chant was horrible school spirit — although it did make me laugh.”