Grammys: Here's what the red carpet looked like 10 years ago in 2009

The Grammys red carpet ten years ago were quite something.

Back in 2009, pop music and in-your-face styles reigned supreme, and the most notable celebrities at music's biggest night reflected that: Katy Perry was in full multicolor mode, pre-"Bangerz" Miley Cyrus hung out with a still-country Taylor Swift and Carrie Underwood showed off her love of a spray tan.

Also on the red carpet was Robin Thicke, who was still with his now-ex, Paula Patton. Coldplay, Paris Hilton, Paula Abdul, Jennifer Hudson and John Mayer were also in attendance, all rocking very of-the-moment styles.

One of our favorite transformations from the 2009 Grammys was Lisa Rinna, who rocked a sexy black gown with a giant bun on top of her head -- a far cry from the signature 'do that she normally rocks on "The Real Housewives of Beverly Hills" these days.

Check out all of the 2009 Grammys red carpet looks below: