Livestream help!

Hey guys I'm going to be setting up a livestream with me and my friend for staking today, and i'm testing it and I need to know how to stream the music that i'm playing from youtube or itunes to my viewers. Also, when we do commentary I'd like to know how to put my audio.

add me on skype: Versonix

or just tell me here or PM me (prefer skype or on this thread) thanks!