The performer also sat on the couch with his The Politician co-star Zoey Deutch to talk about the new Netflix show, in which the pair play running mates for election.
The Tony winner has been busy lately, releasing a new album earlier this year and touring. A filmed Radio City Music Hall concert will be broadcast on Netflix sometime in the near future. Platt has also already filmed the first segment for the Richard Linklater film adaptation of Merrily We Roll Along, co-starring Beanie Feldstein, which will be shot over the next 20 years.
Watch Platt perform above and sing a Yom Kippur song with Deutch below.