Tulisa Contostavlos has defended herself after coming under fire from fans for not promoting Fazer's new single.

N-Dubz rapper Fazer has just released new single 'Killer' but it seems some fans have been confused by Tulisa and her seeming lack of support given to the track.

In a series of messages posted yesterday (September 2), Tulisa said that it is her right to tweet about what she likes and that real N-Dubz fans wouldn't make a fuss over the issue. She said:

"Guna block any1 that has a go at me 4 not tweetin fazers single.U dont know the insnouts n its no1s business.I have the right & my reasons."

She continued: "A real ndublett wudnt judge n let us deal with what ever issues there r in our own time.All this siding will just make it harder 2 reunite. Thanks 4 understanding,its not like the 3 of us never argued when we was 2gether. Nothins changed n it don't mean we wont get back 2gether x."