Britain's Got Talent fans rage after noticing Simon Cowell's 'incredibly annoying' habit

Britain's Got Talent viewers were left gritting their teeth tonight after noticing Simon Cowell's "incredibly annoying habit" on the show tonight.

This evening, viewers were treated to a variety of unique acts, including knife throwers and Russian spoon players.

There were some bizarre performances too, including a stripping piano player and a belly dancing wookie. ]

Another baffling performance came from 60-year-old busker Krysztof Werkowicz, who played a medley of songs from a tuba which also blew out fire balls.

BGT fans noticed Simon Cowell's incredibly annoying habit this evening (ITV)

Viewers raged after noticing Simon was chewing gum this evening (ITV)

But some viewers noticed something incredibly grating about Simon, in particular, tonight - that he was chewing gum while judging.

Fans flocked to Twitter in irritation, with one tweeting: " Am finding Simon Cowell chewing gum incredibly annoying. #BritainsGotTalent #BGT."

While another commented: "#BGT Simon, lose the chewing gum."

A third wrote: "Simon, you shouldn't be chewing gum whilst judging #BGT."

"Simon stop chewing #BGT," another raged.

One wrote: "Not sure what's worse , Amanda.s dress or Simon.s chewing gum. FFS. #BGT."

Another commented: "Very bad manners @SimonCowell on @BGT CHEWING GUM. @ITV #BGT @AmandaHolden @AleshaOfficial @davidwalliams @antanddec."

*Britain's Got Talent returns next Saturday at 8pm on ITV