Kate Middleton"s fashion effect on Zara has celebs in a frenzy over 70 dress

Zara”s flower power: The 70 High Street frock that all the stars are wearing

9:06 AM on 13th July 2011

Denise Van outen Olivia Palermo

Popular choice: Denise Van Outen in LA (left) and Olivia Palermo at the Paris Couture week (right) both opted for the Zara floral print dress priced at 69.99

Singer and former Elen Rivas

Inspired: Both X Factor finalist Rebecca Ferguson (left) and Spanish model Elen Rivas have been seen in London wearing the Zara dress which has now sold out