Ultrafox is an instrumental by Django Reinhardt and Stéphane Grappelli, two stars of the 1930s Paris gypsy jazz scene. It was first recorded in 1935 and released in 1936 by Grappelli with Reinhardt as part of their Hot Club of France sessions. The piece is credited to Reinhardt and Grappelli and sits in the gypsy jazz genre. It showcases their signature call and response between violin and guitar, with a brisk swing and a string only ensemble that defined the era. Ultrafox appears on The Ultimate Collection – Django Reinhardt & Stephane Grappelli With The Quintet Of The Hot Club Of France, a 2 CD remastered compilation that gathers many of their classic recordings.