Azealia Banks has said she is "tired" of consulting "old white guys" about her music and wants her record label, Universal, to drop her.
The musician wrote on Twitter: "Can someone at Sony buy me off of Universal please?? I'm really in hell here.
"I'm tired of having to consult a group of old white guys about my black girl craft. They don't even know what they're listening for or to."
The tweets came after the release of her first album was delayed again.
The 21-year-old was featured in third place on the BBC's Sound of 2012 list after already releasing her debut single, 212, in 2011.
She signed with Universal shortly afterwards.
Her debut album had originally been scheduled for release in 2012, but has been subjected to numerous delays.
Broke With Expensive Taste is currently due to be out in March.
On Sunday night, the rapper continued with her complaint against her label, writing: "My fans really need some new music. I've been gratefully riding off of mixtape fumes for the past two years."
Her mixtape, Fantasea, was released in July 2012 and featured production and voice collaborations with Diplo, Liam Howlett and Shystie.
Azealia Banks has already announced a UK tour for March, with gigs in Glasgow, London and Manchester.