Who knows these few songs please?

[Will3]

I have tried asking the uploaders, but they're not replying. I always use Soundhound on my phone to find out what the songs are, but it can't find everything, unfortunatly. So, please help out.

1. http://www.youtube.com/watch?v=GK9D1EcOGc4 (The first song in the video)
2. http://www.youtube.com/watch?v=GCzNfCXqJpE
3. http://www.youtube.com/watch?v=0Ptj10LMkJE
4. http://www.youtube.com/watch?v=jUpZ3DGJL0c
5. http://www.youtube.com/watch?v=DqJHGtukhUg
6. http://www.youtube.com/watch?v=u3kmWkkFy9E
7. http://www.youtube.com/watch?v=jdRMngEL_IE

Thanks in advance.