Kesha -- Da Ya Think I'm Sexy? (We're Just Sayin')

Here's 29-year-old pop singer Kesha flaunting a feathered out '70s shag hairstyle with bonus blunt bangs while at a Hollywood gala last weekend (left) and international rock god Rod Stewart owning his signature shag while performing at Madison Square Garden back in 1977 (right).

There's lots of layers to this look.