By Damien Shields on Twitter
"“Hot Fever” is from 1985 and what I heard was an instrumental. The same music as TWYMMF, but pre-Westlake. No lyrics/vocals. It was on the same tape as Tomboy (instrumental), What You Do To Me (demo w/vocals), Dirty Diana (demo w/vocals) and Smooth Criminal (demo w/vocals)."
Is it possible that the Vocal version of Tomboy (if exists) was in another tape? Seems that when you register a song there might be different versions that you can register (documents,music sheets,tapes,cds etc.)