Credit: Christopher Polk/Getty

M.I.A. almost stole the show from Madonna at the jaw-dropping half-time show at Sunday's Super Bowl in Indianapolis.

The 36-year-old rapper (real name: Mathangi "Maya" Arulpragasam) flipped her middle finger as she performed backup for Madonna, 53, alongside Nicki Minaj for the Material Girl's new song "Give Me All You Luvin'."

 The British/Sri Lankan star also uttered a profanity ("I don't give a s***") but the expletive wasn't heard on the live broadcast.

The NFL and NBC alike  immediately apologized for the gaffe, which harkened back to Janet Jackson's infamous nip-slip at the Super Bowl alongside Justin Timberlake 8 years ago.

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"The obscene gesture in the performance was completely inappropriate, very disappointing and we apologize to our fans," an NFL spokesman said.

Added NBC: "We apologize for the inappropriate gesture that aired during halftime. It was a spontaneous gesture that our delay system caught late."  A $500,000 fine was levied by the Federal Communications Commission against CBS following the infamous Janet Jackson moment.

M.I.A. apparently did not flip the bird or curse during rehearsals for the show -- which otherwise went off spectacularly as Madonna thrilled the stadium with performances of "Vogue," "Music," "Give Me All Your Luvin', an "Open Your Heart" interlude and "Like a Prayer," with LMFAO and Cee Lo Green also making cameos.