Caroline Flack was reportedly embarrassed at a One Direction concert in London this week, when she was jeered and shouted at by fans.

The Xtra Factor presenter, 32, is said to be dating 17 year old Harry Styles, a fact which doesn’t sit well with many of his teenage supporters and they made their dislike known at the gig.

Insiders say that a stall outside the concert sold out of their 150 whistle products, when they started telling fans ‘whistle if you hate Caroline Flack,’ and say the young girls reacted badly as soon as they set eyes on Flack when she entered the venue.

“Caroline was spotted within minutes of entering,” a source explained.

“The mainly female audience started pointing and jeering, and making a few unsavoury comments.”

It has been claimed that a number of fans carried banners slagging off Caroline and the source added:

“When she clocked the banners, Caroline was mortified and didn’t know where to look. Aside from this, she had a great evening and loved seeing the band in action properly for the first time. At one point, Harry gave her a cheeky nod and wink.”