In what is fast becoming a Jimmy Fallon late at night show tradition (the first iteration featured Stephen Merchant and Joseph Gordon Levitt on Late Night), Paul Rudd and Jimmy Fallon went head to head in a lip syncing battle this week.  For so long battling a tarnished legacy from Milli Vanilii fraud, Beyoncé vocal performance conservatism, and whatever this Ashlee Simpson SNL stint was (whatever happened to Ashlee Simpson, anyway?), lip synching is making a comeback.  Like Full House and Saved By the Bell nostalgia, kid instrument song performances, and Justin Timberlake collaborative magic, Jimmy Fallon is at the forefront of this movement.  Jimmy’s performance was impressive, but Paul Rudd literally dropped the mic.  Enjoy!