"Frank Sinatra: In Concert at the Royal Festival Hall" is a CBS musical television special documenting Frank Sinatra's 1970 performance at London's Royal Festival Hall. Directed by Bill Miller and produced by Harold Davison, the special features an introduction by Grace Kelly, who starred with Sinatra in the 1956 film "High Society," his final film role before marrying Prince Rainier of Monaco. Known for his receding hairline, Sinatra had long used hats in publicity. However, during this concert, he debuted a successful hair transplant and intentionally turned his back to the main audience to acknowledge those backstage, even gesturing to his new hairstyle.