The 28-year-old actress was joined on the red carpet by Lucy Hale.
During the ceremony, Dianna introduced Sam Smith before his performance of “I’m Not the Only One,” which featured her in the video.
Lucy appeared to have gotten a trim right before the ceremony, since she posted a pic of her hair on Instagram. Check out the pic below!
This wouldn’t be the first time that Lucy got a haircut before an award ceremony, she also got her hair trimmed earlier in the month for the Country Music Awards.