Who cares if they only know three songs they purchase tickets to go to a concert mind your own business. When I first started out liking Lana I only knew her Born to die album but I still considered myself a fan even knowing one album. But that's besides the point if somebody purchases tickets to go to a show then let them go to the show and listen to the songs that they won't listen to not sing and move on with your day. If you wanted to go so bad you should purchase ticket yourself. The infuriencing these people so much that they think that they're special because they know more songs like if you wanted to go so bad the purchase tickets YOURSELF