Howard Stern CRUSHES Jay Leno ... on Letterman

2/4/2011 9:25 AM PST

Howard Stern CRUSHES Jay Leno ... on Letterman

Howard Stern has decided he's finally "ready" to weigh in on the late night wars -- and last night, The King of All Media went on "Letterman" to SHRED Jay Leno ... saying he's "horrible" and has "no talent."