GOP presidential contender Rep. Michele Bachmann pithily zinged competitor Gov. Rick Perry on “Late Night with Jimmy Fallon,” but little did she know she too was the victim of a joke on the part of the house band.

As Bachmann walked across the stage to sit next to Fallon for the show that aired Monday night, house band the Roots played a refrain from the Fishbone song “Lyin’ Ass Bitch.”

Though the lyrics refer to a woman as a “slut trash can bitch,” the band only sang the “la, la, la” of the refrain.

The band’s drummer Questlove, sent a tweet prior to the show clueing viewers in on the song choice, writing: “late night walkon song devotees: you love it when we snark: this next one takes the cake. ask around cause i aint tweeting title.”

Later, he retweeted a fan’s reaction: “perfect entry song for her.”

Questlove is a known supporter of President Obama and has contributed to his campaign.

Earlier Monday, Bachmann was asked on NBC’s “Today” show whether she believed she had been treated unfairly by the media because she is a woman.

“Sometimes you wonder about that,” she said. “I have no way of knowing.”

On Fallon, Bachmann pushed her new book “Core of Conviction,” which was released Monday, and played a game of word association with the host in which she poked fun of her competition, particularly Perry.

Asked the one word that immediately came to mind when she heard Perry’s name, Bachmann quipped: “That’s not one word, I gotta do three: Governor. Texas. I can’t remember, oops.”

The joke references an infamous gaffe Perry made at a debate earlier this month when he could not remember the name of the third federal department he pledged to cut if elected president.

A spokeswoman for the Fallon show did not respond to a request seeking comment.  A spokeswoman for the Bachmann camp also did not immediately respond to a request for comment.

Around noon on Tuesday, Jimmy Fallon tweeted “@questlove is grounded,” but did not offer an apology.