Energetic Official Music Video

How to move music from iPod to a new computer?
Alright, my computer crashed and I basically lost all my music from iTunes. But I have my iPod Touch that still have my library. I also downloaded music from programs like Frostwire, so I can't transfer purchases. Is there any programs that can take the music from my iPod to transfer it to my iTunes? I know I did that before, but I just cannot think of the website.

BoA Official Music Video for Energetic, the third single off of BoAs self-titled American debut album.