Katy Perry
The "Roar" singer and her mega-watt smile work the red carpet.
Hozier
The Grammy nominee for Song of the Year was a natural for his first time at the awards show.
Rocsi Diaz
The BET host flashes her pearly whites as she arrives at the 2015 Grammys.
Chrissy Teigen & John Legend
The enchanting couple was all smiles as they posed for pictures and gave interviews on their walk through the red carpet.
Gwen Stefani
The No Doubt front woman was grining from ear to ear at the Grammys. We couldn't help but gush over her cat-eye and neutral lip.
Nicki Minaj
Keeping it fierce was definitely what the "Anaconda" singer was doing on the red carpet.
Pharrell Williams & Helen Lasichanh
We think that the "Happy" star probably turned that frown upside down after he won his Grammy!
Sia & Maddie Ziegler
The "Chandelier" singer was joined by her inner child, and we loved that they wigged out together!