The actress, 54, stunned in the semi-sheer gold gown as she arrived with dapper Ben, 51, who sported a sophisticated black tuxedo.
She cut a stylish display in the see-through garment and flaunted her slender physique.
Jennifer completed the stunning ensemble with nude platform heels, while accessorising with an eye-catching ruby necklace and a gold clutch bag.
The couple looked as happy as ever at the event, as they cuddled up for a sweet photo in the venue.
Notables from the art, film, fashion, and entertainment industries gathered at LACMA for its twelfth annual Art+Film Gala honoring artist Judy Baca.
LACMA trustee Eva Chow and actor Leonardo DiCaprio co-chaired the event for the twelfth consecutive year.
Proceeds from the annual Art+Film Gala go toward underwriting LACMA’s initiative to make film more central to the museum’s curatorial programming, while also funding LACMA’s broader mission.
The couple’s outing comes after Jennifer revealed she is feeling more confident than ever thanks to Ben.
When talking to Vogue to promote her new Beso Balm from JLo Beauty, the Jenny From The Block singer said that he pushes her to make herself feel valued, and she appreciates that.
‘Ben wants me to understand my worth and know my value,’ began the chart-topping singer.
‘I feel even more relaxed and comfortable, which makes me feel even more beautiful than I have ever felt with someone else,’ said the star who was married to Marc Anthony and engaged to Alex Rodriguez.
‘I’m finally at the point in my life where I love every part of myself unapologetically,’ she shared with the fashion bible.
‘Every part of me, my body, my voice, my choices, even like my mistakes. All of it made me who I am and got me to where I am today,’ noted the star.
The looker has been busy these days as she plugs her beauty line and the alcoholic beverage Delola.
She also has the new album This Is Me… Now and is finishing up the film Atlas about an AI soldier has determined that the only way to end war is to end humanity.