In 1977, Sparks appeared in the movie Roller Coaster right in front of the Revolution at Magic Mountain.
In 1983 at the height of their popularity they returned for a high-energy hits filled show.
This is definitely a very rare boot of Sparks at the famous amusement park on 4/23/1983. It's a radio broadcast that was pressed on a vinyl record and then ripped to compact disc. The set list is here. Link. Note this is a rare collectors item, not an official release and is suitable for trading.
I WISHED I LOOKED A LITTLE BETTER
The "Log Jammer," dismantled in 2011 to make room for another
high-tech roller coaster, major bummer!