‘The Four Hornswomen of the Apocalypse’ (aka Genghis Barbie)

“They go by the stage names Freedom Barbie, Velvet Barbie, Jungle Barbie and Attila the Horn. They play arrangements of songs by Lady Gaga, Michael Jackson, Queen and other pop acts. The name of their band is Genghis Barbie, and the group consists of four conservatory-trained French horn players.”