MIA has previously slagged-off Lady Gaga by calling her "a good mimic" and she's had another swipe after Oprah Winfrey praised the 'Alejandro' singer.
Winfrey apparently snubbed the MIA at this year's Metropolitan Ball in New York and that was it - it was on. She seized the chance to attack Gaga's background.
"(Winfrey) made this huge speech at the ball praising Lady GaGa about how she is helping Americans to be the best of themselves," MIA explained. "There's millions of other Americans who represent that for me. Is (it) about numbers? About how much you're selling? Is it truly about the journey? Because (Lady GaGa's) journey isn't that difficult: to go from the f**king Upper East Side to a fucking performing arts school and onto a stage at the museum of f**king wherever. That journey's about four miles."
She also said she was angry with the TV presenter for her attitude towards her at the bash.
"Oprah seemed like she was giving me the cold shoulder," MIA told Time Out. "She was with (David Bowie's wife) Iman. Iman was always dancing with me, hugging and kissing me, but Oprah seemed really pissed off with me."
With this coming from MIA who's had a history of activism in her art and family background, which side are you on?