The GRAMMYs is not only music’s biggest night, but oftentimes, fashion as well.

ET’s Cameron Mathison and Sophie Schillaci joined each other in the Absolut Lime Green Room to showcase Absolut's initiative, The Open Mic Project, which encourages fans to share their stories of acceptance -- a notion that has in many ways been embodied by the GRAMMYs tradition of wild, unique red carpet styles.

From Jennifer Lopez’s iconic Versace gown to other celebs who turn up every year with expressive looks, there was a lot to talk about.

“One star we are always so excited to see hit the red carpet is Katy Perry,” Schillaci says. “She is just so unapologetically herself whether she's rocking blue hair, a classic white suit or even some old Hollywood glam, she just always looks so fierce.”

And don’t forget about Pharrell Williams -- and that hat!

“Pharrell’s hat had its own meme even before the GRAMMYs show even started that year!” Mathison exclaims.

“It’s this incredible initiative where they asked fans to submit videos talking about the times where they felt most accepted,” Schillaci says. “And now, Rita Ora [has created] an original song based on those stories.”

Cheers to being yourself!

The GRAMMY Awards air live Sunday night from New York City’s Madison Square Garden at 7:30 PM ET / 4:30 PM PT on CBS. Absolut Lime is the official spirits sponsor of this year’s GRAMMY Awards.