Seven of the current Top Ten has got the ubiquitous ‘feat.’ on the sleeve. Yep, it is pretty common these days to get some rapper to wander into the studio on lay down a quick half-baked rhyme to break up the sound of an autotuned voice. Sometimes it works… often, you simply wonder why.

With so many collabs in the charts presently, it got us thinking about the times it really doesn’t work at all. We’re talking Bing and Bowie levels of wrong (for the record, not included in the list because it is insultingly obvious).

So with that, here’s a Top 10 Worst Musical Collaborations in pop history. There’s a very good chance we’ve forgotten some, so feel free to add your own musical collaborative crimes in the comments.