Whatever their reasons, more than a few stars have decided to walk away from their chosen fields only to get the itch and return -- some more than once. Take a look at some celebrities who have "unretired."
������ With Lady Gaga confirmed as the halftime act for Super Bowl LI, check out who has performed at past Super Bowls.
For the second year in a row, the University of New Hampshire is offering "Deflategate: The Intersection of Sports, Law and Journalism." Check out the timeline of events in the case.
������ With the 2016 NFL season kicking off with Thursday night's Super Bowl 50 rematch between the Carolina Panthers and Denver Broncos, check out the league's highest-paid players this season.