Additional music for Instagram library or convenient way for users to request to add their favorite music that isn't in the library.
Can't tell you how many times I've tried to connect a specific song to my profile just to find it isn't in the library.

Better yet just integrate Spotify connection/Apple Music/YouTube Music account to link to our profiles (rather a song via a platform).

Or just add Lia's single from Alchemy of Souls: Light and Shadow (Blue Flower) so I can use it on my profile and call it a day.