Singer Sonu Nigam, who is a part of the unique multi-artist collaboration single "Aye Zindagi" -- which also has the voice of Asha Bhosle, Suresh Wadkar, Alka Yagnik, Abhijeet Bhattacharya and Shaan -- deems it fit to be called the "Avengers" of singles.

ITW Playworx Music collaborates with Indie Music Label in association with Sony Music India for the Vishal Mishra-composed song, which was launched here on Thursday.