♪ >> it's like looking in the mirror. >> i know. god! when did i get so ugly? ♪ ♪ i'm going to pop some tags i got 20 dollars in my pocket ♪ ♪ this is freaking awesome >> jimmy fallon is doing things in late-night tv that we've never seen before. he is rewriting the comedic possibilities for late-night talk shows. where david letterman does funny interviews with brian williams, jimmy makes brian sing. >> how about a little regis. just before you go, you're leaving to go to russia, how about a little regis.