Acapella: Men At Work - Down Under (1982)
Instrumental: Notorious B.I.G - Hypnotize (1997)

04/05/24 update: This Bandcamp user in the link below is still taking some of my mashups and uploading them as his own and charging $2 for each one. All my uploads are free so nobody should be paying for any of these but Bandcamp don't seem to object to that.....
https://djchrisdiablo.bandcamp.com/track/men-at-work-vs-notorious-b-i-g-hypnotize-down-under

Release date
November 29, 2023