Well, as a group effort, we have finally got there. I think it should go to @harakiri for solving the hardest ones, but it you've no question, then
@dreams, you answered the most. Will you take it away...?
PS - the answers were:
1 Pink / I'm Not Dead
2 Red Hot Chili Peppers / Californication
3 Beatles / Abbey Road
4 Pink Floyd / Dark Side of the Moon
5 Kraftwerk / Electric Cafe
6 Madonna / True Blue
7 Gorillaz / Gorillaz
8 Michael Jackson / Dangerous