Singer (Captain Jack Harkness)

From Tardis Wiki, the free Doctor Who reference

A singer performed at the Kiss the Boys Goodbye Dance at the Ritz in 1941. After an air raid forced the party goers into a shelter, she continued her routine with "The White Cliffs of Dover". After the all-clear, the dancers and singers returned to the dance hall, where she sang "A Nightingale Sang in Berkeley Square". (TV: Captain Jack Harkness)