Watch: Shah Rukh Khan and Mika Singh sing duet of 'Billo'

Superstar Shah Rukh Khan recently tried his hand at singing at birthday bash of his dear friend Karim Morani in Mumbai.

It was singer Mika Singh, who brought out the hidden singing talent of King Khan by asking him to join him in crooning his newly released song ?Billo?.

Giving a sneak peek of this, the 38-year-old singer shared a video on his Instagram, captioning it as, @MikaSingh: Happy #birthday to #kareemmorani. Had a great party, also the king of so many hearts @iamsrk sang #Billo ..

 

A video posted by Mika Singh (@mikasingh) on Mar 22, 2016 at 6:43pm PDT

The video showed ?Dilwale? actor humming a few lines of 'Billo.'

Shah Rukh will be soon seen in the upcoming movie Raees that is slated to be released on Eid this year.