This weekend, Farm Aid will celebrate its 30th anniversary at Northerly Island in Chicago. To help kick off this weekend's festivities, Farm Aid co-founders Willie Nelson and John Mellencamp joined up for a performance on The Late Show with Stephen Colbert. Joined by Nelson's harmonica player Mickey Raphael and the Tonight Show Band, The Red Headed Stranger and the Artist-Formerly-Known-As-Cougar played "Nightlife", an old Nelson song that's been covered by everyone from Ray Price to B.B. King.
Farm Aid is an annual concert that raises money family farms. The event is held in different cities each year, but will return to Illinois, where the event first began in 1985, for the 30th anniversary. Other country artists in this year's lineup include Kacey Musgraves, Jamey Johnson, Old Crow Medicine Show, Lukas Nelson & Promise of the Real. For more info and tickets, check out FarmAid.org.