Dressed in a metallic gold outfit teamed with thigh high boots, the 24-year-old songstress took the stage by storm as she performed on her hit numbers.
Lovato performed for close to 20 minutes.
Bollywood actress Alia Bhatt introduced the performance of the pop star.
Other international celebrities, who were part of the first edition of Global Citizen Festival India 2016, were British rock group Coldplay and JayZ.
Focusing on major issues like eradicating poverty, quality education, water, sanitation, hygiene and gender equality, the event was organized at the MMRDA Grounds in Bandra Kurla Complex.