Frank Sinatra was a singer in the 20th century. Brigadier Lethbridge-Stewart was an avowed fan of his. (PROSE: Smash Hit) Saric Warder began playing a Frank Sinatra tape after picking up Sacha Mary Palmer in his taxi. (PROSE: Trapped!) The Doctor was on close personal terms with Sinatra, using his cabin to hold a party with Albert Einstein and Father Christmas. In 1952, the Eleventh Doctor and Sinatra performed a duet at a Hollywood party. (TV: A Christmas Carol) The Eighth Doctor, while struggling to recall his memories on Espero, managed to remember the dates of all of Frank Sinatra's comeback tours. (PROSE: Halflife)