After suffering from mild kidney failure earlier this year, Nick Cannon revealed on Wednesday that he was hospitalized for a second time last week. As a result, the 31-year-old entertainer announced on Friday that he is stepping down from his morning radio show on New York's 92.3 NOW. Plus, Jennifer Aniston has some fun with her co-stars on the red carpet at the "Wanderlust" premiere, and "omg! NOW" shares some of our favorite celeb TwitPics of the week. Let us know on Facebook or Twitter which photo you like best -- and why -- and we'll feature some of the comments on Monday's show.