Premise: "Some Velvet Morning" is a song written by Lee Hazlewood and originally recorded by Hazlewood and Nancy Sinatra in late 1967. It first appeared on Sinatra's album "Movin' with Nancy," the soundtrack to her 1967 television special of the same name, which also featured a performance of the song.
Hypothesis: Sinatra herself, did not write all of the songs on one of her albums before 1970.