Superman

"It is a remarkable dichotomy. In many ways, Clark is the most human of us all. Then... he shoots fire from the skies, and it is difficult not to think of him as a god. And how fortunate we all are that it does not occur to him."

- Batman

Superman is a DC comics character confirmed to battle Goku in a Season 3 battle.

Info on the rapper
Superman originally appeared in Action Comics #1 in the year 1938- making him the first superhero, created by Jerry Siegel and Joe Shuster.

Kal-El is an alien child from the ancient planet of Krypton, launched into space towards Earth during the planet's destruction, by his parents Jor-El and Lara Lor-Van. Arriving on Earth, Kal-El was adopted by Jonathan and Martha Kent from Smallville, Kansas, who named him Clark Kent. Clark Works for the Daily Planet, a newspaper company based in Metropolis, Kansas and has relations with fellow reporter Lois Lane and is friends with photographer Jimmy Olsen.

Unlike many superheroes, Superman was born with his powers which are activated by the radiation of Earth's yellow sun, as a result of Kyrptonians becoming accustomed to the radiation of their red supergiant Rao. Superman's abilities include (per incarnation): super strength (can lift a minimum of 200 quintillion tons), flight, invulnerability, super speed (can travel at Mach 4), heat vision, freeze breath, x-ray vision, superhuman hearing, and a healing factor. Superman's powers can temporarily be weakened or removed completely with a long exposure to the element Kryptonite which can only be found in deep space in the remains of the planet Krypton.

Superman is arguably the most famous superhero of all time, and is continuously gaining wide-spread fame and admiration through several comicbooks, tv shows, and movies. He has become a global icon for the flawless man and the American man (in WWII), and the Superman Crest is one of the most widely recognized symbols worldwide.

Trivia

 * He is the third DC comics character to rap, after Batman and Robin.
 * He is the fourth/fifth comics character overall, after Rick Grimes and alongside Goku.
 * He will be the fifth/sixth rapper from another planet after Darth Vader, Master Chief, Doctor Who, Boba Fett and alongside Goku.