I've only known Nancy Sinatra from her hit song "These Boots are Made for Walking" and her duet with her father Frank, "Something Stupid". She always seemed to me to be a one-(or two)-hit wonder.
Thanks to internet radio like Pandora and others, I've found that Sinatra has a far wider recording repertoire. She collaborated with Lee Hazlewood (another discovery for me) on several albums that have a quite impressive and unexpected quality.
So, it's an oldie, but new to me!