Anti-bullying charity Beatbullying has dropped the band N-Dubz as the face of its anti-cyber bullying campaign after a member of the band sent threatening text messages to a member of the public.
Dappy, a rapper, was being interviewed on BBC Radio 1 when listener Chloe Moody sent a text message to the show in which she allegedly called him "a little boy in a silly hat".
Dappy found her mobile phone number using the BBC's system and sent her several text messages including one that said: "Your [sic] gonna die".
The band had been chosen to promote the charity's campaign against bullying through mobile phones and the internet.
Beatbullying has issued a statement saying: "Beatbullying in no way condones Dappy's behaviour. We stress that sending threatening messages of any kind is completely unacceptable.
"N-Dubz became Beatbullying ambassadors because they are a band young people listen to and one of the band members was bullied as a child. They have only ever used their position to support our charity's aims.
"However, Beatbullying is a charity that protects children and Dappy's behaviour is not becoming of an ambassador to young people. We have no further plans to work with the band."