Bruce Springsteen and Chris Martin replaced Bono at a World AIDS Day (RED) Concert on Monday (01.12.14) in New York's Time Square.

U2's lead singer was unable to attend the event as he's still recovering from a recent cycling accident, but Bruce, 65, and Chris, 37, were happy to fill the void by performing some of the band's tunes alongside the other members of the group, Adam Clayton, Larry Mullen Jr. and The Edge.

Bono underlined the importance of the event - which also featured performances from hip-hop superstar Kanye West and Carrie Underwood - explaining: ''This year is a World Aids Day like no other. Today, 13 million people have access to life-saving treatment, up from 300,000 just over 10 years ago. Americans don't know the role they've played in this fight. Tonight's event is to inform them and thank them.''

The 54-year-old rock star injured himself when he tried to avoid another cyclist in New York's Central Park.

Bono needed to have three metal plates and 18 screws to help heal injuries suffered to his upper arm, which was shattered in six places.

However, he is expected to make a full recovery following intensive therapy.