Photos: Everything You Need to Know About Bangs

Jane Birkin, circa 1960. Photo by Reporters Associés/Gamma-Rapho via Getty Images.
Penelope Cruz at a photocall for Volver a nacer in Madrid, Spain, January 2013. Photo by Eduardo Parra/FilmMagic.
Bumble and bumble Prep, $24, sephora.com.
Michelle Williams at the 2015 InStyle Awards. Photo by Getty Images.
Rashida Jones in Malibu, California, August 2013. Photo by Getty Images.
Taylor Swift at the 2016 Vanity Fair Oscar Party. Photo by Getty Images.
James Pecis recommends: Oribe Matte Waves Texture Lotion, $42, oribe.com.
Mica Arganaraz walks Isabel Marant during Paris Fashion Week Fall 2015. Photo by Miguel Media/AFP/Getty Images.
Michelle Obama at the presidential inauguration in 2013. Photo by Getty Images.
Naomi Campbell in 2014. Photo by J. Vespa/WireImage.
Orlando Pita recommends: Orlando Pita Play Up the Gloss weightless polishing cream, $26, ulta.com.
Beyoncé Knowles in Brooklyn, November 2012. Photo by Getty Images.
Rose Byrne in Sydney, Australia, March 2012. Photo by Getty Images.
Sally Hershberger recommends: Sally Hershberger 24K Supreme Body Volumizing Mousse, $32, sephora.com.
Chrissie Hynde, lead singer of The Pretenders, in London, England, January 1979. Photo by Fin Costello/Redferns.
Jennifer Lopez in New York, July 2009. Photo by Getty Images.
Serge Normant recommends: Serge Normant Meta Luxe Hairspray, $25, nordstrom.com.
Bettie Page circa 1952. Photo by Getty Images.
Penelope Tree in February 1973. Photo by Tim Graham/Evening Standard/Getty Images.