When picking a band name, you have to be damn sure you want to be called that for the rest of your career. Sure, calling yourself "Ass Face" sounds funny now, but when you're 40 and still touring under it because it's the only name anyone knows you by, you won't be laughing anymore.
You also have to make sure nobody else is using the name, which is easier than ever now thanks to Google. It didn't use to be that simple, as legal threats led to a lot of name changes right as bands started taking off.
These ten bands made their new names work for them, but let them serve as cautionary tales of how important it is to think your band name over carefully and never let lawyers get you down.