Nov. 20, 2012 at 9:15 AM ET
Dozens of guests visit TODAY every week, and sometimes that makes for unexpected pairings, like when Bill Clinton and the Duggars posed in a photo, or when 2012's Sports Illustrated Swimsuit Issue cover model Kate Upton and the Duggars shared a studio couch.
In that tradition, on Tuesday pop star Kesha met music legend Willie Nelson on the plaza in between her live performances.
What do you think they talked about? Leave your guess in the comments!