Hall and Oates - I Can't Go For That (instrumental) F# minor (most of it)
Kelis - Milkshake (acapella) F# minor
There is something with the key in the pre-chorus (twice), like a parallel F# major. I solved it for now with repeat edits, and made them 3 semitones lower at D# minor.
Switched around the Kelis remarks at 0:46 and 1:46 because I am. like Steve Martin, a wild and crazy guy.
Cut out the sax part [2:36 - 3:30] from original mental, because mashup was too long and I don't like free sax. Haha.
Small timing fixes on vocal with send reverb. Volume automation on outro for fadeout.
Stereowidened and bassboosted mental, because this is the bassline that inspired Billie Jean by MJ.
Those types of edits is what made you stand out to me when I first heard your mashups. I like the creativity part of mashups instead of just laying acapellas over instrumentals.