Staying power! The secret to Cheryl Cole's mega bouffant

By DAILY MAIL REPORTERStylish: Cheryl Cole seen in a new advertisement for L'Oreal Elnett hairspray, sporting a series of looksIf there was any doubt as to how Cheryl Cole is managing to control her impressive mane right now, then look no further.The 27-year-old X Factor judge is seen here in her latest L'Oreal Paris ad, promoting the brand's Elnett Hairspray, which is celebrating its 50th