Shampoo and Celebs

What shampoo do some celebs use?

Selena Gomez: Hello Hydration by Herbal Essance
Pictures sourced from: http://www.phoenixcrash.com/836-hello-hydration, http://awesomize.me/selenagomez

Justin Bieber: Head and Shoulders
Pictures sourced from: http://thejustinbiebershrine.com/2012/01/justin-bieber-v-magazine-photoshoot-jan-2012.html , http://www.bing.com/images/search?q=head+and+shoulders+mens+&view=detail&id=1D840607B5A44A72151FCFB9D6D8CCDDD18C15A0

Cheryl Cole: L'oreal Paris Elvive Full Restore Shampoo
  Pictures from: https://www.google.ie/search?num=10&hl=en&site=imghp&tbm=isch&source=hp&biw=1280&bih=567&oq=cheryl+cole+&gs_l=img.3..0l10.311339.312605.0.312699.12.10.0.2.2.0.109.470.6j1.7.0...0.0...1ac.1.eQdXC1iAd7Y&q=cheryl%20cole , http://www.google.ie/imgres?um=1&hl=en&biw=1280&bih=567&tbm=isch&tbnid=smFZfKXWkeveIM:&imgrefurl=http://www.getgawjus.com/2012/01/best-of-2011-hair.html&docid=XWERHMqKsbk2TM&imgurl=https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEgawZiL1lozH-T6WRdPR7E_K4oBxAj-Hy28A6DtTrcqCkzQUyp1YpW3bU6EaPHu0cVtEH5jV6t-7JdiUJfZgJGOatj4qiprO8Qjk3E84m5ziNMHybAskznHFJ47oGgLW14Ycxz8sxUXXbB_/s1600/l-oreal-paris-elvive-full-restore-5-shampoo-250ml-12672189.jpg&w=317&h=400&ei=6iFbUITSAoyEhQeLrIH4DA&zoom=1