"Swing '42" is a lively jazz composition co-written by Django Reinhardt and Stéphane Grappelli in 1942. The piece showcases the dynamic interplay between Reinhardt's virtuosic guitar and Grappelli's expressive violin, capturing the essence of the gypsy jazz style that the Quintette du Hot Club de France popularized. With its upbeat tempo and intricate melodic lines, Swing '42 has become a signature tune of Reinhardt’s legacy, celebrated for its energetic rhythm and improvisational flair. The track remains a favorite among jazz enthusiasts, highlighting the ingenuity of both Reinhardt and Grappelli.