Ooga Ooga Ooga Chaka! It turns out that Peter Quill’s mix-tape really is awesome. The Guardians of the Galaxy soundtrack — titled Awesome Mix Vol. 1 [$10] after Star-Lord’s beloved cassette of ’60s and ’70s hits — has reached #1 on the Billboard charts. Making it the best-selling album in America. The album sold over 100,000 copies last week alone, and its the first soundtrack ever to hit #1 containing only previously released music.