Now, that is one hot duo!
Revealing she and Brit have collaborated on a brand new track, Iggy told US radio station Kiss 108 their tune is "undeniably great".
According to Iggy, Britney had her sights set on working with the 'Fancy' singer and after reaching out, the girls teamed up.
Speaking about their track - set for release early next year - Iggy said: "We recorded a few different things and then one of those just ended up being, I think, undeniably great.
"I think people are really going to love it and enjoy it. It's a really fun track."
But, despite working together, Iggy did admit she is yet to meet the 'Oops I Did It Again' singer in person.
Hoping she can come face-to-face with Britney for a catch up before the year bows out, Iggy said she would be spending her New Years Eve watching Britney perform in Vegas.
And, the pop princess isn't the first fellow female star Iggy has teamed up with.
Earlier this year, Iggy worked alongside Jennifer Lopez on her track 'Booty'.
And, the blonde beauty also enlisted the help of Rita Ora to sing on her top ten hit 'Black Widow'.
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Watch Iggy and Rita's video for 'Black Widow' here: