"U Can't Touch This" is MC Hammer's 1990 super hit signature song, from his album Please Hammer, Don't Hurt 'Em. The album sold more than 10 million copies, due primarily to this single, and gaining multi-platinum certifications from the RIAA, and other Recording Industries.
Rick James sued Hammer for infringement of copyright, as the song basically consists of the prominent opening riff of "Super Freak", which is constantly repeated throughout. The suit was settled out of court when Hammer agreed to credit James as co-composer, effectively cutting James in on the millions of dollars the record was earning. James was accordingly credited as a co-author.