Cydia
You’ve probably had the bad experience of listening to a song on video on Youtube and seeing it stop as soon as you hit the springboard. You will find below a small tutorial to allow you to listen to your music in peace, Youtube iOS running in the background.
Tutorial:
1) Add the source http://cydia.myrepospace.com/bestguyhaha in Cydia
2) Then search for the package BgVideo
3) Install the tweak and then respring your iPhone, iPad or iPod Touch.
It’s over ! Now take full advantage of Youtube on Safari while using your other applications. 😉