What a group! Former presidents Jimmy Carter, George Bush, Bill Clinton, George W. Bush and Barack Obama… with Lady Gaga.

The singer took to Twitter to share the picture at the One America Appeal benefit concert at College Station, Texas, on Saturday.

The former U.S. presidents came together to help those affected by Hurricane Harvey in Texas, Hurricane Irma in Florida and Hurricane Maria in Puerto Rico and the U.S. Virgin Islands.

Gaga made a surprised appearance at the event, called “Deep From the Heart: The One America Appeal,” which also included performance by Lyle Lovett, Robert Earl Keen, Lee Greenwood, Sam Moore, Cassadee Pope, Yolanda Adams, Stephanie Quayle and The Gatlins. 100 percent of ticket sales will benefit hurricane victims.

Gaga captioned the pic:

“Nothing more beautiful than everyone putting their differences aside to help humanity in the face of catastrophe. #OneAmericaAppeal.”

Gaga, who sang “Million Reasons,” “You and I” and “Edge of Glory,” announced that she would be donating $1 million to hurricane relief efforts.

“In a time of catastrophe we all put our difference aside and we all come together because we need each other or we can’t survive.”