R&B star Frank Ocean has attempted to end his contract dispute with bosses at fast food chain Chipotle by sending them a naughty cheque.

Chipotle officials sued the singer after he allegedly backed out of a $425,000 (Gbp265,600) deal to sing the theme to an ad.

They claimed they had already paid a $212,500 (Gbp132,800) advance.

On Monday (10Mar14), Ocean took to his Tumblr.com account and posted the photo of a cheque for that exact amount, adding in the memo section: "F**K Off".

Chipotle bosses turned to Fiona Apple when it became clear Ocean would not take part in their ad.