Musical Food: This was the first #1 song in the year 1972.?

Questions

What rocksteady act had an early MTV hit with the song "Our House"?

What rolling stones album contains the songs, start me up & waiting for a friend?

what section of a symphony orchestra is obsessed with f holes?

what shania twain song was kept from the radio because of content?

what shortlived 1978 braodway show was based on elvis presley's life?