Mark Ronson, gearing up for new album Uptown Special and shortly after premiering new single "Uptown Funk" with Bruno Mars on vocals, took to 30 Rock Saturday night (Nov. 22) to take us back to a time when roller rinks ruled supreme for two performances engaging for audiences old and now.

"Uptown Funk," the project's first single, shimmers with its decades-old disco funk, and much like the song's video that was released earlier this week, the tune's live debut was an appropriate period piece. A horn section, backing band and backup singers flanked Mars and Ronson, who added electric guitar, with neon and twinkling lights surrounding them from side to side and above the stage. Would have been a snug fit on SNL in its first season, let alone its 40th.

Mars and his four-man crew pulled off their share of in-sync dance moves while crooning the track, creating an infectious, raucous party atmosphere. If the second song is any indication, Uptown Special will be more of the same slice of music history. Host Cameron Diaz introduced Ronson and Mars again� but wait, is that Mystikal? IT IS! MYSTIKAL IS ON YOUR TELEVISION. The rapper joined the band for a rollicking number called "Feel Right," Mars relegated to a backup role as he strutted and danced about the stage, setting Twitter ablaze with cries for its savior.

Ronson's appearance on SNL preceded the release of his new album Uptown Special, due out in 2015. Little else is known about the record, though Kevin Parker of Tame Impala purportedly also collaborated with Ronson for it in addition to Mars.