Couldn't make it to the hottest star-studded parties this week? No problem, we've got you covered. Come party-crashing with me as I count down the three hottest celeb bashes of the week.
Madonna turns 51 with her much younger boy-toy in Italy, while Kourtney Kardashian parties on through her pregnancy! Plus, which fashion fete brought out Diddy and Sienna Miller? Hit the clip above to find out.
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Want more A-list action? Check out our Party Pics: Hollywood gallery!