"Any offence I have caused by using the term 'queer' in my rap battle with MC Worthless. I just have to say I'm extremely disappointed in myself for being so naive with the diss track I made for an unknown rapper recently. I would just like to make it completely clear that it was not meant in anyway as a reference to homosexuality," Arthur tweeted.
"I realise where the term has come from in meaning... but used in the context of the rap battles I have grown up with it has come to mean something completely different ... That said, I understand why it could cause offence and that definitely wasn't my intention," the singer wrote.