Bella Thorne & Aly & AJ Michalka: InStyle Summer Soiree 2013

Bella Thorne arrives at the 2013 InStyle Summer Soiree held at the Mondrian Hotel on Wednesday night (August 14) in West Hollywood, Calif.

The 15-year-old actress was joined at the event by sisters Aly and AJ Michalka.

PHOTOS: Check out the latest pics of Bella Thorne

The month before, Aly and AJ stepped out for the premiere of Blue Jasmine held at the AMPAS Samuel Goldwyn Theater in Beverly Hills.

FYI: Bella is wearing an Armani dress and shoes, Charlotte Olympia from Forward by Elyse Walker clutch, and XIV Karats jewelry. Aly wore a Reformation dress with Brian Atwood shoes. AJ chose a striped Opening Ceremony dress, Christian Louboutin shoes and Max Azria clutch.

10+ pics inside of Bella Thorne, and Aly and AJ Michalka…