How do I unhide songs from my iPhone

Go to your itunes on your iphone then scroll all the way to the bottom on itunes and press on your Apple ID. Then press view Apple ID. Scroll down and click on hidden purchases. There you can unhide hidden songs.

I'm not sure how to hide songs on the iPhone (maybe it's something you can do if you jailbreak it), but I'm sure that you should just undo what you did. Like if you went to Settings and somehow hid the song there, then you can go to Settings and un-hide the song.

I have experienced a problem just like this. Try go to Music (on ur iphone) > More > Compilations and see if ur hidden song is there. If it's there, go to ur iTunes on ur PC or Mac, right click on that song > show info and untick "part of compilation" box. Sync. Hope this will solve ur problem.

That's not a feature of the iPhone.

I know this is a few years late but thank you!!!!!