They’ve been doing that since the recording studio process developed the model in the 1920s or so. They would hire songwriters to make generic pop music with generic lyrics, and keep it in the vault until you have some attractive young singer you want to use for marketing then you give them an album of these songs to sing. And they are sure to sell because you’ve been priming the american ear for these chord progressions for a long time, and you fill all the air in the room with your marketing for this singer leaving people little option but to hear the latest carefully crafted earworm. Still happens today maybe even more perfected with psychological studies intersecting with music and marketing. The best musicians have never and will never be a product of that machine. Seek out live music.