The two young actresses were spotted around the party, trading secrets from their two shows, Mad Men and Modern Family.
Hosted by Ariel‘s costar, Sarah Hyland, the party celebrated the release of The Songbirds‘ new album, Miss Me. The night also featured a live performance from the band.
FYI: Kiernan wore a Miu Miu top and shorts with Louboutin shoes.
15+ pics inside of Ariel and Kiernan…