Although it's often used as a stand-in for elevator music, bossa nova really doesn't deserve the square reputation it's somehow acquired. When it began, it was actually considered cool and bohemian (bossa nova literally translates to "new trend"). If you've never listened, it's time to give bossa nova another try, and what better way than to check out the many great ladies of bossa nova past and present? It's super '60s, the perfect soundtrack to your Mad Men kick and ideal mellow end-of-summer music. This mix can only provide a small sampling of the bossa that's out there, but it's enough for you to temporarily pretend you're lounging on the beaches of Brazil, wearing a retro swimsuit and sipping a daiquiri.