You know the name; you know the hair, the smile; but most of all, you know the voice. Chaka Khan is a legend, plain and simple. Through her four-decade career, she's established herself as one of the best to ever do it. Which is why we're paying tribute to Chaka at the BET Honors ’13. Here, in light of her big night in the bright lights, we've narrowed down her diesel discography to its essentials—not an easy task. Read on for a look at Chaka Khan's 25 best songs.