Johnny "Joe Kid, JoJo" Joestar
About
Near the beginning of the series Steel Ball Run, Johnny Joestar encountered Gyro Zeppeli and was brought to his feet upon touching Gyro's steel ball. Believing Gyro to be capable of teaching him to walk, Johnny joined the Steel Ball Race and followed him to be trained.
Throughout the race Johnny uses a horse named "Slow Dancer" named after the Boz Scaggs song of the same name. Johnny's horse is an old American Appaloosa, it is initially hard to tame but overtime comes to be the legs for Johnny.
Johnny earns a Stand named "Tusk" when they venture into the Devil's Palm as a result of their fight with Dio and Dr. Ferdinand. Tusk is able to fire Johnny's spinning fingernails similar to a revolver, with the nails having to take a few seconds to regrow. This long range attack becomes his primary means of defense. His Stand is small in size and has the same star-pattern over it as on Johnny's clothing, it appears to reside inside of him and only comes out to offer advice. It cannot speak, only make animal-like noises.
Later in the series, Johnny masters Gyro's "Spin" technique and uses it with his Stand's fingernail bullets; at one time, even being able to use it on himself. His Stand also evolves although remaining similar in appearance, now able to fire from the toenails on Johnny's paralyzed feet.
(Source: Wikipedia)