Simon Cowell on Facebook, urging the music mogul to make Tulisa Contostavlos' act ditch the name.
He also claimed Simco - a company mainly owned by Cowell - had applied to used the trademark Rhythmix, despite being "fully aware" that it was already trademarked as the name for the charity.
An X Factor spokesperson has since confirmed that after pressure from the charity, the girls have decided to change their name as they don't want to cause any difficulties for Rhythmix, despite there being no legal reason why they can't use the name.
The rep stated: "At the request of the charity Rhythmix, the members of the girl group Rhythmix have decided to change their name, a decision which has the support of Syco and TalkbackTHAMES. The group's new name will be announced in due course".
Any suggestions?

[uuid=de6c6bc2-37a7-4e34-a260-5cffb97d24ef]SEE PICS FROM THE X FACTOR 2011 HERE![/uuid]