Jimmy Kimmel and Sarah Silverman: it's on! Maybe the couple reunited to get Jewish grandmas to vote for Obama. • Country star Mindy McCready is going back to the slammer for violating her probation. She was on probation for committing prescription drug fraud, and in a statement released this morning said, "I am working very hard to put all of this behind me as quickly as possible so I can get back to what I like to do most: sing, write songs, and entertain." • Sleazebot 40-something Jeremy Piven was reportedly hitting on 19-year-old Hayden Panettiere, even though she's in a serious relationship. Not at all surprising. [TMZ, People, Celebitchy]

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