The 2018 iHeartRadio Music Festival was a seriously star-studded event! From Sabrina Carpenter to Shawn Mendes to The Vamps, there were so many of your favorite stars at the event. The guys we love from Riverdale made an appearance too! KJ Apa, Casey Cott, Luke Perry, and Skeet Ulrich all stepped out on the red carpet together in A+ ensembles, giving us the dose of Riverdale we always need in our lives.

Sabrina stunned in a flowy blue top, which she paired with a pair of white high-waisted shorts and matching pointed-toe pumps. Her bestie and Adventures in Babysitting co-star Sofia Carson rocked a suit-inspired mini dress with dazzling pink sequins running down each sleeve. And they weren’t the only Disney Channel stars there – Debby Ryan and Asher Angel were there as well! Check out the gallery below to see the standout looks from the 2018 iHeartRadio Music Festival.

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