It’s hard to say whether classic rock revivalists Rival Sons can hold a candle next to obvious heroes like, say, any ginormous British rock act between 1965 and 1978, but the execution might be worth checking out. Scour their MySpace page and a monster of new classic rock will come pleasantly crashing in, crappy speakers or not. Rival Sons hold Sunday nights at Cinespace all this month — the cost is free and, yes, there will be loads of free vodka swimming around.