Cast of Disney's "Lemonade Mouth" starts flash mob at Apple store

It was another quiet afternoon at the Apple retail store at The Grove in Los Angeles, CA -- or as quiet as an Apple store can be on a busy day -- when all of a sudden, a flash mob began singing and dancing the song "Determinate" from the Disney Channel production Lemonade Mouth over Easter weekend.

Chris Brochu and Hayley Kiyoko, two of the film's stars, organized the surprise appearance with about 15 of their friends and captured their entire performance on video. The choreographed song and dance number drew a mix of befuddled and delighted looks from shoppers and ended when three unfortunate Apple employees were inclined to politely escort the mob out of the store.

This weekend's flash mob by the cast members of Lemonade Mouth is one of the latest in-store performances by Apple shoppers captured on video and published to the video-sharing website YouTube. With its chain of well-lighted retail locations filled with internet-connected Macs, Apple often draws aspiring and professional actors, singers and dancers to its stores. ifoAppleStore, the blog for all things Apple retail, offers a look at some of the many in-store videos shoppers have published over the last few years, including a mashup of iJustine clips, lip-syncing children, a performance by a teen singer known as "tr3vor" and more.

Lemonade Mouth is a musical film produced for the Disney Channel that follows five high school students who meet in detention and form a band to help them each overcome their shared and individual obstacles. The made-for-television movie premiered on April 15, 2011.