Kelis' 'Millionaire' and Gwen Stefani's 'Long Way To Go' were scrapped from an Andre 3000 album.
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35 Mind Blowing Hip-Hop Facts

24. Kelis' 'Millionaire' and Gwen Stefani's 'Long Way To Go' were scrapped from an Andre 3000 album.
Both tracks were originally intended to feature on the Outkast rapper's album 'The Love Below', but eventually featured only on the collaborators' own solo projects.