Some songs are well known because they were licenced in a commercial.

Some commercials are well known because they licenced cool songs.

Here's a non-commercial, bootleg, mashup album about just that.

In advertising, "borrowed interest" is the intentional association of an unrelated theme, event or image with a product, service or subject being presented, to attract attention otherwise not anticipated.

To me, that sounds a helluva lot like mashups.

You can download the tracks at my Bandcamp page.

Alternatively, download links for this album, and others, are available here.

Sample list

Spotify Playlist of sampled songs

BACK TO ALL MASHUPS