the Drake version that is floating around sounds like they filtered his demo over the song, are we sure it is official, since more people report it is just a fanmade/fake version
The one that Break The Crate has is the same verse from the demo but the quality is way better than the leaked demo so it seems like they have the actual studio track.
Could it just be urban single actually? Because Radioactive is very pop and they might want something to help sell the album to urban audiences too (like Rihanna sending Man Down to urban radio when California King Bed was out and Raining Men when S&M was out)? Although HWD was poptastic too and they didn't bother with an urban single so maybe not