Iggy Azalea says her proposed Britney Spears collaboration is most definitely still on.

The rapper revealed at the end of last year that she will work with the pop icon on a "fun" new single.

Azalea responded on Twitter on Tuesday (February 3) to rumours that the song has been dropped by saying:

"Insiders are always really OUTsiders with misinformation. This couldn't be further from the truth.  Get ready."

The Australian added that the duo have big plans for the track:

"There are pretty epic plans underway for the song that's all I'll say."

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Watch Iggy Azalea being interviewed below: