A deal between Snapchat and Live Nation has just been announced and will see augmented reality experiences at future music festivals and concerts. People attending particular Live Nation events will be able to use Snapchat to unlock these AR creations with special lenses.
According to Snapchat, the use of AR will “elevate festivals and concerts beyond stages and screens to create a deeper connection between artists and fans.” More here
By the way, do you remember Flirtar? They didn't last long, but were probably too early: using AR for dating may be a way forward! Their concept was great, read about it here