Aguilera will perform at the Sept. 25 grand opening celebration of the museum's Lynda and Stewart Resnick Pavilion, described by LACMA as "the largest purpose-built, naturally lit, open-plan museum space in the world."

The 29-year-old pop star said she's honored to help celebrate the 45,000-square-foot exhibition building, which was designed by Renzo Piano.

The gala fundraiser is open to the public. Individual tickets are $5,000 to $10,000 and tables are available for $25,000 to $100,000.