Katherine McNamara brightens up the carpet while arriving at the 2014 Teen Choice Awards held at the Shrine Auditorium on Sunday (August 10) in Los Angeles.

The 18-year-old actress helped host a red carpet pre-show before the live telecast.

PHOTOS: Check out the latest pics of Katherine McNamara

“Tune in #kitkats for the #TeenChoiceAwards and the red carpet pre-show at http://www.teanchoiceawards.com ! Only 15 minutes to go! xox,” she tweeted.

Earlier in the week, Kat rocked all black at the Official Pre-Party held by Candie’s at The Gibson Showroom.

FYI: Kat is wearing a BCBGeneration shoes and dress.

Photos: Getty

Posted to: