Actor-politician Kamal Haasan has penned, sung and directed "Avirum Anbum" -- a song on hope, positivity and love in these testing times.

Joining him in the effort are his daughter, actress Shruti Haasan, composers Anirudh Ravichander, Yuvan Shankar Raja and Devi Sri Prasad, singers Shankar Mahadevan, Bombay Jayashree and Sid Sriram, actors Siddharth and Andrea, pianist Lydian, and singer-actor Mugen.