I bought a new external drive to backup all my music files. Plug it in, copy files, everything's fine.
Then the next time I tried to turn my PC on, it just stayed on the boot screen.
I unplugged the drive, and everything works normally.
I assume the PC is trying to use the new external drive to boot from, but I don't know why or how to get it to stop doing it. I already have one other external drive that stays plugged in all the time, and it's never caused problems like this.
Nobody remembers the singer. The song remains.