Leno on Letterman: We Buried the Hatchet

2/9/2010 8:45 AM PST

Leno on Letterman -- We Buried the Hatchet

Jay Leno and David Letterman have called a ceasefire -- and their Super Bowl ad is to blame.

While talking about filming the spot last night, Jay put the cheap shots aside and said "Whatever happened the last 18 years disappeared, it was great to see my old friend again."