Jonathan Groff loves to sing ('Hamilton,' 'Frozen') on the set of his new Netflix show, 'Mindhunter'

In this new USAToday video clip, Holt McCallany dishes about how much Jonathan loves to break into song on ''Mindhunter,'' which begins streaming Friday. (They play FBI profilers of serial killers.) Holt also recalls the time that he and Jonathan did a duet for Holt's mom's memorial ... and what went wrong. (Holt's mom, by the way, was the wonderful Broadway and cabaret star Julie Wilson.)

http://www.youtube.com/watch?v=8wS8AzCugH0

Updated On: 10/10/17 at 11:44 AM

For the record, Netflix offers a free month of subscription, and you can binge-watch Jonathan in all 10 episodes of ''Mindhunter'' ...

Updated On: 10/14/17 at 01:08 PM