useless trivia: What Word Means: Latin For Fire, As In Ignus Fatuus, Fool'S Light?

Questions

Early Pop Rock: He joined the Grateful dead in 1968?

Early Pop Rock: Ironically, "Our Day Will Come" was #1 when this song was #2?

Early Pop Rock: Lead singer for the Stone Canyon BAND in the late sixties?

Early Pop Rock: Little Richard's final top 40 hit before going into gospel music?

Early Pop Rock: Number of Elvis songs that hit #1?