Seven talented but unknown music acts from across the UK take to the stage to perform their own unique renditions of songs made famous by Frank Sinatra, in a bid to win a slot at his centenary concert. Set against a backdrop of glitz and glamour worthy of the Rat Pack, the show is hosted by Alexander Armstrong and Rochelle Humes, while a panel of celebrity Sinatra devotees, including songwriter, musician and producer Dave Stewart, funny man and performer Rufus Hound and singer and broadcaster Mica Paris, offers up a critique of each performance. The winning act will be chosen by a group of expert judges that includes musicians, composers, music journalists and vocal coaches.