year for harris. he wowed broadway and won a tony for headwig. and then there was this creepy role in the oscar nominated film "gone girl." >> she was my first serious girlfriend. and now his biggest gig of all. >> the job of the host is like a good dinner host is to welcome them in. take their coats, show them the house, make them feel comfortable. >> reporter: he would know. he has done the tonys and emmys. so much hosting, he jokes he has an obsessive hosting disorder what can we expect? harris has been dropping hints online and there's sure to be razzle-dazzle. he is getting help from the writers behind this disney's smash hit ♪ let it go ♪ >> what they are doing i'm not at liberty to say but i can tell you it won't be a song called "let it o." >> reporter: he is offering spoilers on what he will be wearing. >> fuchsia, never fuchsia.