Name The Year: Dr. Martin Luther King Jr shot to death in Memphis, Tennessee.?

Questions

what night of the week did john travolta get disco fever?

What norway pop band included morten, pal & mags?

what opera star sang with john denver on the album "perhaps love"?

what part of a piano's action permits the keys to be struck in quick repetition?

what performer was billed as 'ten fiery fingers on the piano' when he led the bill at a 1958 show in st. Louis?