The 'Young' singer was reported to have fallen out with ITV producers after discovering that Nicole Scherzinger would be returning to the judging panel.
© Steve Searle/WENN.com
However, she has branded the Daily Star news item as "complete lies".
Tulisa tweeted: "Some1 at a certain paper has a very wild imagination 2day (sic).
"Really dont understand how certain media are allowed to print complete lies #SAD."
A source had previously said: "Tulisa had a blazing row with producers when she found out Nicole was coming back.
© Rex Features / Ken McKay/Thames
"She can't stand working with her and Tulisa is not enjoying the job at all.
"The producers couldn't wait to get rid of her. She turned her dressing room into a nightclub and would boom out loud music."
Contostavlos's dad recently revealed that his daughter wants to leave The X Factor as she "only does it for the money".
Photo gallery - Tulisa and Nicole's X Factor style:
Tulisa Contostavlos wears a tight-fitting bandage dress as Nicole Scherzinger dons a demure white knee-length frock.
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Copyright: PA Images
