Cheryl Cole, Sarah Jessica Parker, and Elle Macpherson work Seventies hairstyles

Cheryl Cole, Sarah Jessica Parker, and Elle Macpherson work Seventies hairstyles

Turn up the volume! The Seventies really are back as A-list work hair-raising bouffant

9:20 AM on 12th May 2011

 Sarah Jessica Parker Cheryl ColeElle Macpherson

Hollywood Helmet: Sarah Jessica Parker at the Robin Hood Foundation annual benefit in New York on Monday, left, Cheryl Cole in LA last week, and Elle Macpherson on the school run last month

Jessica SimpsonChristie BrinkleyKate Middleton

Hair today: Jessica Simpson, left, Christie Brinkley, and Catherine Middleton, right are fans of the trend

Drew BarrymoreBeyonceJennifer Lopez

Timeless: The classic do was a red carpet hit for Drew Barrymore, Beyonce and Jennifer Lopez