Chance is a mobile app (built on top of twitter) through which Followers/Fans can have short, recorded video interactions with their Influencers/Celebrities.
How it works: Followers send short video messages to their Influencers/Celebrities. Influencers can reply to the ones that they find interesting and complete the interaction(s). Once completed, the app has viral loops built into it such that these 2-way interactions are recorded, shared on Twitter and can be further shared socially.
End result: Chance gives Followers a permanent digital autograph with their Influencers. Influencers on the other hand benefit from the publicity and reach they get by engaging in these recorded interactions (For e.g. A funny interaction between a stand-up comedian and his fan would be retweeted & shared several times), thus creating a win-win situation for everyone involved.