When visitors start the game, they need to invite their connections from different countries. The person with the largest distance(on a world map) between the invitations, won a price. This price was a trip to the Night Of The Proms concert in Kansas City.
Night of the Proms celebrated their 30th anniversary. They gave away several duo-meet&greets via a Facebook application. Facebook registered which persons took part of the meet&greet contest. The only thing you needed to do was to tell them who's your favourite artist.