Look Who Just Joined Jenny!

Today in Tweet Beat, Carrie Fisher is the new spokeswoman for Jenny Craig. Plus, celebs are all over this Sarah Palin "blood libel" thing."

Look Who Just Joined Jenny!

Look Who Just Joined Jenny!

Look Who Just Joined Jenny!

Look Who Just Joined Jenny!

Look Who Just Joined Jenny!

Look Who Just Joined Jenny!

Look Who Just Joined Jenny!

Look Who Just Joined Jenny!

Look Who Just Joined Jenny!

Look Who Just Joined Jenny!

Look Who Just Joined Jenny!

Look Who Just Joined Jenny!

Look Who Just Joined Jenny!

Look Who Just Joined Jenny!

Look Who Just Joined Jenny!

Look Who Just Joined Jenny!

Look Who Just Joined Jenny!