Salma Hayek has an impressive library of photos from the red carpet and glamorous events, which she often shares with her fans on social media.MORE: Salma Hayek is unrecognisable after unexpected makeoverAnd most recently, the Frida actress took to Instagram to post a stunning throwback photo of herself posing backstage at a showbiz event – and her hair was noticeably different.The Hollywood star often styles her hair in natural waves, but for the event, Salma's tresses had flicky layers, which