Global Citizen concerts push for action on climate change and COVID vaccines

Britain's Prince Harry and Meghan Markle appear onstage at the 2021 Global Citizen Live concert at Central Parmore

Singer Jennifer Lopez performs at the 2021 Global Citizen Live concert at Central Park in New York, U.S., Septmore

Singer Camila Cabello and Shawn Mendes kiss onstage at the 2021 Global Citizen Live concert at Central Park inmore

Singer Billie Eilish performs onstage at the 2021 Global Citizen Live concert at Central Park in New York, U.Smore

Singer Lizzo performs onstage at the 2021 Global Citizen Live concert at Central Park in New York, U.S., Septemore

Demi Lovato performs during the Global Citizen Live concert at The Greek Theatre in Los Angeles, California, Umore

Fans enjoy the 2021 Global Citizen Live concert at Central Park in New York, U.S., September 25, 2021. REUTERSmore

Demi Lovato performs during the Global Citizen Live concert at The Greek Theatre in Los Angeles, California, Umore

H.E.R. performs during the Global Citizen Live concert at The Greek Theatre in Los Angeles, California, U.S., more

Audience members enjoy a performance during the 2021 Global Citizen Live concert at Central Park in New York, more

Singer Cyndi Lauper performs onstage at the 2021 Global Citizen Live concert at Central Park in New York, U.S.more

Meek Mill performs at the 2021 Global Citizen Live concert at Central Park in New York, U.S., September 25, 20more

Singer Paul Simon performs onstage at the 2021 Global Citizen Live concert at Central Park in New York, U.S., more

Chloe Bailey and Halle Bailey of Chloe x Halle perform during the Global Citizen Live concert at The Greek Themore

The audience watches performers during the Global Citizen Live concert at The Greek Theatre in Los Angeles, Camore

Shulman Smith and Daisy Kate Jacobson perform during the Global Citizen Live concert at The Greek Theatre in Lmore

Takeoff, Quavo, and Offset of Migos perform during the Global Citizen Live concert at The Greek Theatre in Losmore

Lang Lang performs at the 2021 Global Citizen Live concert at Central Park in New York, U.S., September 25, 20more

Jon Batiste performs at the 2021 Global Citizen Live concert at Central Park in New York, U.S., September 25, more

Singer Alessia Cara performs onstage at the 2021 Global Citizen Live concert at Central Park in New York, U.S.more

Britain's Prince Harry appears onstage at the 2021 Global Citizen Live concert at Central Park in New York, U.more

Britain's Prince Harry and Meghan Markle attend the 2021 Global Citizen Live concert at Central Park in New Yomore

Singer Jennifer Lopez and rapper LL Cool J perform onstage at the 2021 Global Citizen Live concert at Central more

Fans react as singer Shawn Mendes runs at the 2021 Global Citizen Live concert at Central Park in New York, U.more

Singer Camila Cabello performs onstage at the 2021 Global Citizen Live concert at Central Park in New York, U.more

Singer Billie Eilish performs onstage at the 2021 Global Citizen Live concert at Central Park in New York, U.Smore

Singer Lizzo performs onstage at the 2021 Global Citizen Live concert at Central Park in New York, U.S., Septemore

Demi Lovato and Adam Lambert perform during the Global Citizen Live concert at The Greek Theatre in Los Angelemore

Camila Cabello performs at the 2021 Global Citizen Live concert at Central Park in New York, U.S., September 2more

Ozuna performs during the Global Citizen Live concert at The Greek Theatre in Los Angeles, California, U.S., Smore

Julianne Hough performs during the Global Citizen Live concert at The Greek Theatre in Los Angeles, Californiamore

People wave cell phones during a performance at the 2021 Global Citizen Live concert at Central Park in New Yomore

Singer Jennifer Lopez performs at the 2021 Global Citizen Live concert at Central Park in New York, U.S., Septmore

Meghan Markle appears onstage at the 2021 Global Citizen Live concert at Central Park in New York, U.S., Septemore

Jennifer Lopez performs at the 2021 Global Citizen Live concert at Central Park in New York, U.S., September 2more

Singer Shawn Mendes performs onstage at the 2021 Global Citizen Live concert at Central Park in New York, U.S.more

Demi Lovato and Adam Lambert perform during the Global Citizen Live concert at The Greek Theatre in Los Angelemore

People take a selfie in front of the stage before the 2021 Global Citizen Live concert at Central Park in New more

A person reacts during the 2021 Global Citizen Live concert at Central Park in New York, U.S., September 25, 2more

5 Seconds of Summer perform during the Global Citizen Live concert at The Greek Theatre in Los Angeles, Califomore

Burna Boy performs at the 2021 Global Citizen Live concert at Central Park in New York, U.S., September 25, 20more

Maxwell Hughes of The Lumineers performs during the Global Citizen Live concert at The Greek Theatre in Los Anmore

Ryan Tedder of OneRepublic performs during the Global Citizen Live concert at The Greek Theatre in Los Angelesmore

Luke Hemmings of 5 Seconds of Summer performs during the Global Citizen Live concert at The Greek Theatre in Lmore