Lending your cred to a pair of athletic shoes or a golf shirt is so Old School. If the gadgets coming out of CES are any indication, today's hipsters want to slap their names on something with a little more cachet. And what could broadcast cool better than a slick pair of headphones endorsed by Diddy, Beyonce, or the noted philanthropic duo of Bono and Lady Gaga? Here's a sampling of the latest ear candy.