It's HOT in Hollywood!
This week, Lea Michele takes in the sights on vacation ... and shows off her amazing booty, Nick Lachey works on his house -- shirtless -- in the hot summer sun and Miley Cyrus goes topless in the desert.
And, Reese Witherspoon has some fun in Nashville, Emma Roberts channels "Superstar" Mary-Katherine Gallagher in one hilarious pic and Khloe Kardashian goes horseback riding.
Plus, James Franco has a creepy new look, Jessica Simpson and hubby Eric Johnson get goofy on their honeymoon and Diddy's son is all grown up, and looks just like him!
Click "Launch Gallery" above to see these stars' personal pics and even more celeb candids in this week's best celebrity TwitPics!
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