Hammer Time

From Wikipedia:

Hammer's dance style not only helped pave the way for the Bay Area Movement called Hyphy,^[141] but also helped to bring hip-hop and rap to the Bay Area. His dancing skills are still taught to this day. With his popular trademark Hammer Pants, one phenomenal difference from Hammer versus other performers during his heyday was that he was an entertainer, both during live shows and in music videos. His flamboyant dancing was as much a part of his performances as rapping and musical instruments were.

With high-energy dance routines, he was often considered one of the greatest dancers. While adding his own techniques, Hammer adopted styles from James Brown and The Nicholas Brothers such as the splits, and feverish choreographed dance routines including leaps and slides, most notably. His creation of such dances as "Hammer Dance"^[142] (or the "Typewriter Dance") and the use of "The Running Man" and the "Butterfly," among others, made his flashy and creative dance skills unlike any others at the time.

Is that a period joke?