An independent barbershop choir I'd really like to hear? Well, naturally, you'd need Stephin Merritt's baritone and Sufjan Stephens tenor... and maybe Jonsi Birgisson of Sigur Ros as a soprano? I'm not sure who the fourth member would be, but I'd buy a ticket.

Sufjan Stevens - She is (Tim Buckley Cover)
Sigur Ros - pop song #8