The celebrity ponytail comes in all shapes and sizes these days. There is the high (Katy Perry), the low (Gwyneth Paltrow) and some place in the middle (Salma Hayek). It seems anything goes this summer! According to Glamour if you want your hair to look a bit thicker in a ponytail simply wrap a couple bands around rather than just one like Jennifer Lopez. It will make the ponytail protude and make your hair look thicker!