16 Collaborations That Will (Probably) Never Happen Again
Collaborations can either be a hit or miss. Combining two or more artists (sometimes from different genres) requires organic chemistry or else the track falls flat and gets buried in the musical cemetery never to be visited again.
Unlike Eminem and Rihanna, these musical matches probably won't make a Billboard chart in the near future. See which very rare duets happened in this lifetime above.