Every birthday, one song. Enter your birthdate for the Billboard Hot 100 No.1 from every birthday of your life — then make it a playlist.
Adding songs to your library is something only your account can do, so the transfer tool has to connect to it. It adds a playlist and nothing else, and never touches this site. Disconnect whenever you like — Spotify: spotify.com/account/apps · YouTube & Google: myaccount.google.com · Apple Music: Settings → Privacy & Security → Media & Apple Music · others: look for “connected apps” in your account settings.
Tap your app — every ▶ below opens there.