Around 2006, prolific, hard-drugging singer-songwriter Ryan Adams cleaned up and began spitting out even more music. III/IV is 21 songs from 2007's Easy Tiger sessions, supplanting that album's wired folk rock with a blend of punk head rush, New Wave twitch, metal crunch and hippie noodling. "The Crystal Skull" is Morrissey with a girlfriend; "Ultraviolet Light" posits Ian Curtis fronting the Byrds. Does it cohere? Please. Just tighten your scarf and savor the storm.

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“My President”

Young Jeezy teams up with Nas on this track, in which he compare his own success with the idea of an African-American winning the Democratic Party's nomination in the 2008 presidential election. "When I pulled up in my car, that s--- was unbelievable to people in my neighborhood because they were like, 'We grew up with him. How the hell did he accomplish this?'" he told Rolling Stone. "I feel like it was the same way with Obama. I grew up all this time, but I've never seen a black man this close to running this country."