Jen Fulwiler believed in herself and had a vision for a career in comedy, so she just went out and made it happen. (Not quite overnight, but she did it.) Hear how, on this episode of How to be Tom Shillue
This is the gag that I've been doing at the end of my show- it's different every time because I'm working it with local guys. But these guys had to be the best so far- with no rehearsal they pulled off the "heckling barbershoppers" routine. And their singing was great too. Have a look.