Last night, Charlize Theron appeared on The Late Show to talk about her trip through Spain, which involved a lot of "down and dirty" trains (which she prefers).
Shailene Woodley, The Descendants star and herbal remedy expert, came onto Late Night to help Jimmy Fallon with his slew of medical problems.
Jeremy Renner showed up on Jimmy Kimmel Live! to discuss imparting various unintentional childhood traumas on his young niece.
Finally, Katie Couric appeared in The Tonight Show to tell a heartwarming story about Former President Ronald Reagan and Rep. Tip O'Neill. No joke here; it's just the time of year when it's okay to think about sweet things.
