Melania Trump dresses in gray and receives a friendly greeting from country star Garth Brooks at Rosalynn Carter’s funeral: Former first ladies Michelle Obama, Laura Bush and Hillary Clinton all dress in black to say goodbye to their predecessor

Melania Trump thanked country star Garth Brooks for her performance at Rosalynn Carter’s funeral, as the five surviving members of the first lady sisterhood took center stage at the ceremony.

Mrs. Trump wore a gray tweed coat, while Michelle Obama, Laura Bush, Hillary Clinton and current first lady Jill Biden wore all black.

After the ceremony, Brooks, who sang a rendition of John Lennon’s “Imagine,” kissed Mrs. Obama, Mrs. Clinton and Mrs. Trump on the cheek.

The service saw former first ladies temporarily burying any disagreements and sitting side by side to commemorate one of their exclusive clubs.

Melania Trump leads Michelle Obama, Laura Bush and Hillary Clinton into the church

The first ladies sat in the front row

Melania Trump and Michelle Obama take their seats

In perhaps the clearest example of unity, Mrs. Trump and Mrs. Obama sat next to each other, inches apart, disregarding the animosity caused by their spouses’ presidencies.

It was a rare public appearance by Mrs. Trump, who has stayed out of the spotlight as her husband pursues a third step in the White House.

She was the first to walk into Glenn Memorial United Methodist Church in Atlanta, Georgia and take a seat at the end of the first row next to the aisle.

Mrs. Trump was followed by Mrs. Obama, Laura Bush and Hillary Clinton as they took their seats in that order.

Jill Biden, the current first lady, was separated from the other four by Bill Clinton.

All five women remained poised during the ceremony, listening to tributes to their predecessor and examining their service notes.

There seemed to have been no interaction between them during the service.

Garth Brooks gives Michelle Obama a kiss on the cheek after the service

A military honor guard carries the casket of the late U.S. First Lady Rosalynn Carter

The former first ladies take their seats

Rosalynn Carter’s grandson Jason Carter praised them for their tribute.

“Thank you all for coming and recognizing this remarkable sisterhood you share with my grandmother,” he said.

“And thank you all for your leadership for our country and the world.”

Drawing laughter from the audience, he added, “Secretary Clinton and Dr. Biden, we also welcome your dear husbands.”

The rise of political celebrities – including all living first ladies – showed the high regard in which Rosalynn Carter is held.

She was celebrated as an active first lady who stood up for then little-discussed mental health issues.