Cheryl Cole has caused hairspray sales to soar.

The 27-year-old beauty - who is renowned for her love of Big Hair - is believed to be behind a spike in demand for the product, with sales in the UK leaping by a fifth in the past year.

Annabel Jones, contributing editor at Grazia, said: "Our love affair with big hair is almost singlehandedly down to the Cheryl Cole effect. When she appeared as an 'X Factor' judge, Cheryl's bouncy backcombed mane and sparkling smile were a welcome antidote to the looming recession. Her big-hair obsession shows no sign of slowing down."

Celebrity hairdresser Mark Hill added a "return to glamour" has led people to go back to using hairspray.

He said: "Hairspray is now much better to use. It gives great hold and can be easily brushed out. It can also be used for a variety of styles.

"In the late 1990s and early 2000s, there was a return to more natural products, and people tried to use less hairspray as they thought of the ozone layer.

"However, in recent years there has been a complete return to glamour, and the trend of big, bouncy hair has meant that hairspray is now an essential again."

Cheryl was recently made the face of L'Oreal Elnett hairspray, with the brand putting the British star's image on limited edition cans.