How to listen to a youtube vid and still go on other apps

If you've been on YouTube and you listen to a song's video that only has the lyrics showing, you kinda wanna venture your phone and do other stuff.

Well it is as simple as 1-2-3......I think

Just open YouTube...

Type in the song you want to listen to and select it

When your video has somewhat loaded, press play and quickly click the home button

Now you should be back at home...for now

Double-tap the home button to see your recently opened apps.

Swipe your finger to the right and you'll see the YouTube app and the Play/Pause button. Tap it and you can listen to your music and still use other apps.

That's all there is to it. If you've already known how to do this, well good for you. But you kept it from everyone else....so enjoy.