This one's a doozy.
Jane Doe met Sammy Hagar in 1983 when she was working as a Playboy bunny at the Playboy Club in Lansing, Michigan. In 1988, Doe told Hagar she was pregnant and he was the father, which he denied, but signed an agreement with Doe, anyway. The child was born, but died shortly afterward. In a 2011 autobiography, Hagar said that the paternity claim was just an attempt to extort money out of him and he doubts there ever was a baby at all. Doe sued for defamation. The district court granted summary judgment for Hagar. In a ruling today, the Eighth Circuit reversed some of that summary judgment.
I think that about sums it up.