JJJ's 'Austin & Ally Countdown' Begins! Our Top 10 Guest Stars Revealed!

5. Mimi Kirkland

Who she played: Lily, the Ally Dawson superfan who signs up for music lessons only to spend time with her. Later, she actually takes the music seriously and becomes a talented musician.

First Appearance: Mattress Stores & Music Factories
Last Appearance: TBA