This week, Fergie and Kelly Ousbourne show off their sexy backsides, Drake enjoys the Fall in New York and Taylor Swift flaunts her cat bathrobe while traveling!

And, Kris Jenner takes a hilarious selfie with Jamie Foxx, Katy Perry's birthday wishes come true with a Shakey's pizza parlor sign and Zac Efron kisses his rumored girlfriend Sami Miro!

Plus, Mindy Kaling teases her new "secret" project, Ansel Elgort shows off his DJ skills in Amsterdam and Mile Cyrus flaunts her bikini bod at the beach!

Click "Launch Gallery" above to see these stars' personal pics and even more celeb candids in this week's best celebrity TwitPics!