Proving you can sell more '70s compilations with an emotional backstory than with a plea from Tony Orlando's foyer, the soundtrack to Guardians of the Galaxy has climbed to the number one spot of the Billboard 200. Though everyone's parents have explained that they already bought these songs on vinyl and don't see why they'd have to pay for them again, the collection, subtitle "Awesome Mix Vol. 1," managed to sell 109,000 copies last week. That makes it the second film soundtrack to top the charts this year--the first being Frozen, obviously--but more notably, Billboard reports that this is the first instance of a soundtrack hitting number one with entirely previously-released songs. It's a real testament to how relevant the film made forty-year-old songs feel--or actually, maybe it's simply evidence that the sort of people buying music are the kind of people who just want some hits lazily thrown together for them. Because in second place this week? Now That's What I Call Music 51!