Talk about fireworks! American Idol's Katharine McPhee may not have beaten out Taylor Hicks for the coveted title, but she looks a hell of a lot better holding a microphone! In the new issue of Stuff, Kat raises our body temperature by posing for this sexy photo shoot. Nice stems, sista! The lovely brunette talks to the men's mag about how she, ahem, blossomed early: "I was prematurely developed. As a freshman I looked like a junior; I had boobs. Some of the older kids saw me in the yearbook and said I was cute." For more revealing anecdotes from the sizzling stunner, check out the August issue of Stuff.