At the end of last year we ran an video-driven Instagram sweepstakes as part of Miley Cyrus' Bangerz Tour 2014 for client LiveNation. The idea is simple - fans post videos of themselves doing their #BangerzStrut for a chance to get featured in the promotion. They are also able to enter the promotion on their desktop or mobile device (almost all of our sweepstakes now have a mobile optimized component). You can check out the promotion (which is over) at: http://www.tweematic.com/bangerz/
What's cool about the promotion is the Instagram Video scroll (similar in concept to the Micheal Jackson's Eternal Moonwalk). The promotion also have comprehensive sharing as well a complete tour schedule (with sharing features).