Advertising. It's tricky, isn't it? Do you accept cash from advertisers, or do you starve?
Still, at least it's possible to take the money and still retain some of your dignity. Sometimes. Though that's not what Santogold, Pharrell and Julian Casablancas have done, taking the cash and doing a wouldn't-have-happened-without-the-ad collaboration for Converse:
The independent minded who all wear the same shoes and the optimistic rebels who make a song because a multinational company pay them money. Yes, we've heard of them.
You can hear the song on stereogum but, really, we'd recommend you choose your own shoes and give it a miss.