HORRIFIED festival organisers were forced to pull the plug on a rapper's expletive-ridden set after complaints that he was using foul language at 11am.

Shocked Wacky Weekender festival goers along with dog walkers and nearby residents complained after hearing the unnamed rapper use incredibly strong swear words during their morning set.

Organiser Mark Cookson said he was horrified by the explicit language and rushed to Stage Three.

The decision was taken to cancel the rest of the lineup for Stage Three on Sunday.

Scores of people enjoyed seeing acts including Toploader, Scouting for Girls and The Bluetones at Worcester Racecourse on Friday to Sunday (July 21 to 23).

Worcester News: EVENT: Spirits were high at Wacky Weekender despite the rainEVENT: Spirits were high at Wacky Weekender despite the rain (Image: NQ)

Dog walker Mary Reeves called the language disgraceful. 

She said she was walking her dog around Pitchcroft at 11.30am when she overheard the course language.

"When you have kids around and this early in the day [it's] disgraceful."

Festival goer Claire Edwards said: "It was advertised as a family-friendly festival.

"Stage 3 had acts that spouted the most disgusting and foul language during their time on stage I've ever heard both during the day and at night.

"The organisers even received complaints from locals nearby about the language but it took until Sunday morning for them to cancel that stage."

Mr Cookson said: "The stage was shut down and they were told to stop.

"I rushed down to the stage.

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"I was horrified by the language being used. 

"I did everything I could.

"They cost me thousands of pounds to shut that stage and they ruined it for everyone else.

"It shouldn't have happened, but I can't be responsible for someone else's actions."

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Many people had been looking forward to seeing Stage Three headliner Devlin who has a song with Ed Sheeran which was produced by Labrinth.

Organisers paid the cancelled artists their 50 per cent deposit but not the remaining 50 per cent of their fees because they did not perform.

An announcement was made on Sunday evening that the stage had been closed due to "technical issues" 

Mr Cookson continued: "Hundreds of people enjoyed the festival.

"We have one or two complaints.

"We had to battle with the weather but it was still a good event.

"You will 100 per cent see us again next year.

"It's been very hard, but people have enjoyed themselves."