In 1962 a guy named Bobby “Boris” Pickett recorded a gimmick song that turned out to be one of the world’s greatest all-time one-hit wonders. He called it “Monster Mash,” and, yeah, it was a graveyard smash. But with all due respect to Mr. Pickett’s little ditty, it can’t hold a candle to the kind of Monster mashing scheduled to take place this weekend at Rocky Mountain Raceways. It’s called “Clash of the Titans” and with this year being RMR’s 20th anniversary season, the 2016 version of “Clash” will feature 16 Monster Trucks revved up and ready to mash anything that dares get in their way.