Watch: Priyanka Chopra sings 'Imagine' with John Lennon, Courtney Cox, Will.I.Am, Sunidhi Chauhan for UNICEF

Bollywood actress Priyanka Chopra and over 50 world artistes came together to sing for this promotional video for UNICEF. #IMAGINE is an initiative uniting millions of people to raise awareness and funds for children's rights globally. In collaboration with David Guetta and Yoko Ono, UNICEF plans to bring the world together to create the largest sing-along.

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