Bruno Mars wants his fans to give him their attention for one of Hawaii’s landmarks, the Waikiki Natatorium War Memorial.

Mars has joined The Cities Project by Heineken and the National Trust for Historic Preservation in their quest to save the World War I monument and its 100-meter saltwater pool, where Hawaiian Olympian Duke Kahanamoku once swam.

Through Saturday, Mars fans who donate $150 or more to one of 11 Heineken projects — including the memorial — on the crowd-funding site Indiegogo will get a pair of tickets to the Bruno Mars 24K Magic World Tour.

“I really like what The Heineken Cities Project is doing for cultural and arts centers around the country, and they’ve put a big emphasis on my home state of Hawaii, so I was happy to support them and Indiegogo through my tour,” Mars said in a statement.

In its first two months, the fundraiser raised more than $375,000 for 11 different projects, including the natatorium, said Katharine Preville, Heineken USA brand manager. The effort raised more than $37,000 for the memorial, which is the second-highest-grossing project after the restoration of the prism glass sidewalks in Seattle’s Pioneer Square, Preville said.

“It just goes to show how important people feel (the natatorium preservation effort) is and how interested they are in seeing it brought back to life,” she said. “Quite a few people from Hawaii have donated, and they can continue to give to this program” through Saturday.

The battle to preserve the memorial, which was built in 1927 to honor Hawaii’s 10,000 World War I veterans, dates back to 1979, when it closed due to disrepair. The trust added the memorial to its “national treasures” list in 2014 and has since presented alternatives to an $18.4 million plan announced in May 2013 by Gov. Neil Abercrombie and Mayor Kirk Caldwell to demolish the pool and bleachers and replace them with a public memorial beach.

“We haven’t come across another WWI memorial that has taken the form of a swimming pool anywhere else in the world,” said Brian Turner, trust senior field officer and attorney. “It’s unique as a living memorial commemorating our veterans with a tangible icon while providing a place where people can recreate.”

Last fall the trust revealed a new plan to save the crumbling structure by replacing its swim basin’s sea wall with individual chevrons, which prevent wave action against the bleachers yet allow water to circulate in the basin. (Renderings of the plan can be seen at 808ne.ws/Natatoriumplan.)

Preservationists hope the plan, which was developed by Hans Krock, emeritus professor of ocean and resources engineering at the University of Hawaii at Manoa, and Alfred Yee, consulting engineer for Pearl Harbor’s USS Arizona Memorial, will be one of the solutions vetted by the city as part of an ongoing environmental impact statement.

Turner said the trust has pushed the city to add the chevron plan to its EIS process. The city already is vetting the memorial beach idea as well as a plan to fully rehabilitate the natatorium and pool and another that removes the natatorium but keeps the bleachers.

Money from The Cities Project will produce an animated video that tests the chevron model and shows the public how it would work, Turner said.

“This is a terrific opportunity to perhaps turn the tide on this conversation about the natatorium which has been underway for some time,” said Stephanie Meeks, trust president and CEO. “This is an opportunity to make your voice heard.”

City Department of Design and Construction Director Robert Kroning said the city has met with the trust and looked at the conceptual drawings prepared by its consultant.

“In concept it seems to fall into the same category as the previous reconstruction project, which was canceled; therefore, it cannot be a pool,” Kroning said. “Even so, elements of its concept are being considered in one of the EIS alternatives.”

Kroning said the beach plan remains the city’s preferred option.