Lady Gaga, Stevie Wonder, Billie Eilish and more artists are participating in the concert, which is being held to support communities affected by the California wildfires.

As Los Angeles recovers from its devastating wildfires, environmental engineers, urban planners and natural disaster experts are casting forward with visions of what could come next for neighborhoods that have been reduced to ash and rubble.

At least 29 people are believed to be dead and more than a dozen others remain unaccounted for as multiple wildfires rage across Southern California.