Hasan recently performed at the Times of India Film Awards in Vancouver and at a series of gigs supporting Shreya Ghoshal's European tour.
The singer told Digital Spy "It's so great to be back in London after TOIFAs and this amazing tour with Shreya Ghoshal.
"My habibis have been really patient so now I get to share my latest and very personal project with them, called 'Away'. It's an ironic love song that I'm sure a lot of people can relate with."
The Canadian-French performer has filmed the music video for "Away' with Bollywood star Humaima Malick.
The model-turned-singer will give a live performance of the Rishi Rich-produced song at the launch event.
'Away' will be unveiled at Raj & Pablo's Bollywood Nights at the Century Club on May 31.