Jennifer Aniston 41, Halle Berry, 44 and 42 year old Julia Roberts will grace the cover of magazines during the most important month of the year for top fashion magazines. Putting these women on the cover of September issues says that times are changing when it comes to our youth-obsessed culture. Pop culture experts say that female stars in their 20’s and 30’s don’t have much admiration longevity or power these days. They say, “Who is there to look up? [lastfm]Britney Spears[/lastfm]? [lastfm]Kim Kardashian[/lastfm]? [lastfm]Lindsay Lohan[/lastfm]? What do they have to offer? Who will be on the cover of Vogue, Elle and Harper’s Bazaar in September?