The judge was 'excited' on show

Nicole Scherzinger was accused of being drunk on The X Factor on Saturday night after shocking viewers with her erratic behaviour.

The singer, 35, appeared highly excitable during the disco-themed show, where she was seen dancing, waving her arms around and shouting comments as her contestants performed.

Her antics caused a Twitter storm as fans speculated that she might have had a few drinks before the show.

I’m pretty sure Nicole Scherzinger is drunk tonight, she’s gone crazy,’ one user Tweeted.

Another wrote: How annoying was @NicoleScherzy tonight on #XFactor was she drunk? Stupid southern accent and shouting. Annoying not entertaining!

But show officials have quashed the rumours, claiming that Nicole was simply enjoying disco week.

Nicole wasn’t drunk,’ an X Factor spokesman tells The Sun.

She was just excited and getting into the disco spirit.’

Sources say that Nicole, who split from Lewis Hamilton earlier this year, was in a good mood after her family flew in from Hawaii to spend time with her before the show.

She was pretty relaxed and decided to kick back by having a party,’ an insider says.

Before the show she was dancing and spinning disco classics for them. Everyone was pretty excited and went a bit wild.’

SEE PICTURES Judges Nicole Scherzinger and Gary Barlow join Caroline Flack to launch the new series of The X Factor 2013

SEE PICTURES Nicole Scherzinger and The X Factor judges attend Music Industry Trusts Awards in London

SEE PICTURES Lewis Hamilton and Nicole Scherzinger – a love story in photos

Anna Francis