Last week it was reported that the rapper had had control of her Twitter account taken away from her by her management after posting multiple controversial tweets.
But now she appears to be back online and, amid a series of explicit tweets, divulged the news about her new single.
"Single #2 is called "ATM JAM" and it's featuring @Pharrell ! !," She tweeted.
Pharrell Williams is very much the man of moment currently, working on several of the biggest records due for release this year, working with Daft Punk, Beyonce, Kendrick Lamar, Jay-Z and Kylie Minogue among others.
Banks came to the music listening public's attention in 2011 with single '212' and many expect great things from her.
There's still no news about the release of Azealia's album
But in the meantime she's become more known for her confrontational and controversial Twitter activity. outraging the gay community and arguing with several other musical figures including Angel Haze and The Stone Roses.
Her debut album, Broke With Expensive Taste, still doesn't have a definite release date.
Below: The worst of Azealia Banks' Twitter: the rantings of a rapper