Mack the Knife was described as the "most beautiful song ever written" by Simon Cowell. Threepenny Opera's Mack the Knife is gorgeously melodic and sentimental. This is meant to be a play on Mack's real state of mind in (a hired murderer anti-hero).
Mack the Knife was transcribed for violin/piano by Jascha Heifetz. This version has some minor changes from the Heifetz original. Played live in January 2013.