X Factor winner Leona Lewis had to endure a big family bust-up at her own grandmother�s funeral this weekend.

The star looked on after her father Joe refused to let in her cousin Gemma to the London bar where the family were holding a wake.

Joe�s refusal to let Gemma into the @ Club in Finsbury Park caused an argument which spilled over into fighting, until the police were eventually called.

A relative tells The Sun, �He told Leona�s uncle to keep Gemma out. The girl arrived and couldn�t understand why she was barred from her own nan�s wake.

�A scuffle broke out and there was lots of shouting. Loads of people were in the street and everyone seemed to get involved.�