British pop star James Arthur has fired an assistant after blaming the aide for sending a series of lewd messages to a model.

Arthur was caught in a new Twitter.com controversy after model Teddy Edwardes posted pictures of messages apparently sent from the winner of The X Factor U.K. asking her for sex, but Arthur insists it was an assistant who sent them.

The scandal blew up on Saturday (08Feb14) when Edwardes shared some of the messages with her fans on Twitter.com, but Arthur later blamed an assistant for the gaffe.

When the model posted a picture of his supposed contact details he responded, "No that is one of my Pa's numbers that has now been fired... Give my personal assistant who I sacked yesterday a ring..."