How did Brendon Urie get famous

for one thing when he worked at the tropical smoothie cafe he sang for tips and people thought "wow this guy can sing". u can see Brendon mentioning this in an interview that he did for rock sound.

Brendon Urie had originally been in a blink-182 cover band with a few vrienden from neighboring high schools. Ryan Ross, a member of their cover band reached out to Pete Wentz of Fall out Boy and sent him their early demos. He got back to the starting band and invited them to LA and meet them. So they did and it all went up from there.