Which song is playing in "Reservoir Dogs" when Mr. Blonde tortures a police officer?

The song ‘Stuck in the middle with you’ (written by Gerry Rafferty and Joe Eagan; performed by their group ‘Stealers Wheel’).

The story of 'Reservoir Dogs' is mainly set in a warehouse in an American city. It starts with a group of six well suited men (all using aliases) and their two bosses (Joe and his son Eddie), having breakfast at an American Diner. They chit-chat about Madonna’s hit ‘Like a Virgin’, before their planned armed robbery of a jewellery store.

An unusual feature of the soundtrack was the choice of songs; Tarantino has said "that he feels the music to be a counterpoint to the on-screen violence and action". He also stated that he wished for the film to have a 1950s feel while using '70s music. A prominent instance of this is the torture scene to the tune of "Stuck in the Middle with You".

In an interview with the Rolling Stone magazine Tarantino revealed that from the very beginning of the auditions for Mr Blonde, he was sure that ‘Stuck in the middle with you’ as the song for the torture scene would ‘work really well’.