TOP FIVE GREATEST COLBERT LATE SHOW MOMENTS SO FAR....

Today we are counting down the Top Five Greatest Stephen Colbert Late Show Moments So Far....

#5) Stephen explains Gravitational Waves

#4) Stephen performs the new anthem "My Kind of America" with Jack Black

#3) Friday Night Fights with Neil Degrasse Tyson

#2) Stephen Colbert makes Casey Affleck uncomfortable...

#1) Stephen Moderates a Trump vs. Trump debate