Brian Carroll is the real name of the avant-garde guitarist, Buckethead. The reason behind his alter-ago is that Brian(Buckethead) has terrible stage fright and is an extremely shy individual, so he hides behind "Buckethead". That's pretty much all that is known about the person behind the bucket. He was given lessons by Paul Gilbert(RacerX, Mr. Big, Solo) for a year as a teen. Here's how he got the idea for the bucket and mask.