Jessica Simpson's Ashlee anger

10-05-2007 07:30

Jessica Simpson was reportedly furious after being mistaken for little sister Ashlee by lover John Mayer.The 'Dukes of Hazzard' star - who recently went from a blonde to brunette - was with her new musician boyfriend when he allegedly pointed to a picture of Ashlee on a magazine cover and asked "How old is this picture of you?"Jessica is said to have lost her temper with John and insisted she and Ashlee look completely different. A witness told America's Star magazine: "Jessica read John the riot act. He definitely touched a nerve."Though Jessica, 26, was once close to her 22-year-old sister, they have reportedly started to grow apart since Ashlee lost weight and dyed her hair blonde.Ashlee is also said to have had a nose operation, although she has never confirmed going under the knife.A source said: "Jessica hears the catty talk about how Ashlee looks like her - from two years ago. It totally bothers her.