Television personality Stephen Colbert smiles while taping the "The Colbert Report" with U.S. President Barack Obama, not pictured, in Lisner Auditorium at George Washington University in Washington, D.C., U.S., on Monday, Dec. 8, 2014. This is President Obama's third appearance on "The Colbert Report" that will broadcast its final show on Dec. 18. Photographer: Andrew Harrer/Bloomberg via Getty Images