a co-chair for the gala and its Camp theme. Her absence tonight is understandable: Gaga has been performing in her Las Vegas residency show.

Gaga shared her Sunday whereabouts on her Instagram yesterday, teasing she spent the day in a light blue bikini in Vegas, where she's been performing her Jazz and Piano residency show. “Somebody’s ?” Gaga captioned her shot.

She revealed today that Tom Cruise attended her Vegas show last night. “Thank you for coming to the show last night. I love you my friend @tomcruise,” Gaga wrote.

Gaga went viral last month when she and BTS' J-Hope hung out backstage at her show while the K-pop band was in town performing their own Vegas show.

“Today was a really glorious day,” J-Hope wrote of their time together. “When it comes to a show, there’s none like Lady Gaga!!! It was a special day for me, since I wanted to see her performance so much. Today, on the stage she was incredible, but off the stage she was so professional and there was so much to learn from her, and every comment from her for me will stay with me for my whole life. @ladygaga , my queen forever!!! Please keep making your incredible music. Thanks to you, today I discovered the beauty of jazz!!! I cheer you on as a fan!!! Love U!!”