The Black Keys are proving to be very prolific songwriters. Their new album "Turn Blue," co-produced by Danger Mouse, is coming in May and the also just released the first single "Fever" on their website. The song isn't as instantly catchy as past efforts like "Lonely Boy" or "Howlin' For You" but it still has that distinctive Black Keys groove along with a bigger emphasis on organs and a fuller sound than in the past. It'll be interesting to see how the rest of the album sounds and if it'll be less bluesy and more psychedelic than we're used to hearing from them.