A photo of Lady Gaga and the five living former U.S. presidents went viral over the weekend.

Former presidents Jimmy Carter, George H.W. Bush, Bill Clinton, George W. Bush and Barack Obama joined Gaga Saturday night for a benefit concert to raise money for U.S. disaster relief.

The One America Appeal concert took place in College Station, Texas, and raised $31 million, according to organizers. The money raised would go to help hurricane victims in Texas, Florida, Puerto Rico and the U.S. Virgin Islands. Hurricane season battered the U.S. with a powerful set of storms this year.

President Donald Trump did not attend but sent a video message that was played there.

“This wonderful effort reminds us that we truly are one nation under God, all unified by our values and devotion to one another,” said Trump.

The One America Appeal initiative was launched in September following Hurricane Harvey which hit Texas. The project is being managed by the presidential library of the elder Bush, located at the Texas A&M University.

“With damage estimates from Hurricanes Harvey, Irma and Maria topping $300 billion and requiring months and years of rebuilding ahead, we hope this strong start to the One America Appeal is just that – a start,” said David Jones, CEO of the George H. W. Bush Presidential Library Foundation in a statement. “The former presidents want to thank each donor who, out of the goodness of their hearts, has given of themselves in such a selfless way to help their fellow Americans.”

Gaga performed her song “Million Reasons,” at the concert.