5 Surprising Music Collaborations

Songwriting partnerships come in all shapes and sizes. Here's a few collaborations that you wouln't expect.

Eric Idle and Darth Vader Robin Thicke and Daft Punk #3 Lady Thatcher and Lady Gaga #4 Billy Corgan and ZZ Top #5 Tom Waits and Justin Bieber

Tags: suprising collaborations, darth vader, eric idle