4. Sleek and Straight. The disco era also featured plenty of sleek, straight locks. Also known as ‘Cher Hair,’ this is one of the '70s hairstyles for long hair you need to try out.

1970: A full fringe was wildly popular in the early '70s, as seen on Cher. This was one of Cher's more tame hairstyles. Keystone/Stringer/Getty Images ...

A popular hairstyle in the '70s was messy layers on short to mid-length hair — something most hairstylists refer to as the ...

For the past few years, it seemed like we couldn’t get enough ‘90s and early ‘00s hair trends. But lately we’ve been forgoing our zigzag parts and bumpits for some ‘70s-inspired locks instead. From ...

Ahh, the early 2000s. ... But let us not forget the best spiky hairstyles of the early 2000s, ... Heidi Klum's New Choppy Bangs Are So '70s Rockstar Chic. By Megan LaCreta.

For the past few years, it seemed like I couldn’t escape the '90s and early ‘00s hair trends popping up online. But lately, I've been spotting other styles (other than the zigzag parts and ...