RWBY is just the letter of the first name of each I guess main character of this online show maid by Rooster Teeth /Jeff Williams. When I first heard about it they was only releasing the theme for each main character. I thought it was based off of people in history/stories but learned it was for the show and they was his own characters. At RTX he showed the episode and now its online for 12 mins or so. I don't know how often it will update but I hope it do soon.
Ruby: http://www.youtube.com/watch?v=pYW2GmHB5xs
Weiss: http://www.youtube.com/watch?v=Vt9vl8iAN5Q
Blake: http://www.youtube.com/watch?v=ImKCt7BD4U4
Yang: http://www.youtube.com/watch?v=QCw_aAS7vWI
Note: This is supposedly her theme. The song is with remix of all together for her song though everyone believes the end part is her song 'I Burn' though its not full and I don't know if Jeff will make a longer version or not.
First Episode: http://roosterteeth.com/archive/?id=7872
Song in First Episode: http://www.youtube.com/watch?v=0KkJ0i8_JsQ
