Janet Jackson meets up with Sia backstage at the Christian Siriano fashion show during 2023 New York Fashion Week at the Pierre Hotel on Friday (September 8) in New York City.

Sia was a surprise guest at the event, where she performed two of her mega hit songs, “Chandelier” and “Diamonds.”

Among the stars sitting front row at the presentation were Avril Lavigne, Kesha, Laverne Cox, Quinta Brunson, Sarah Hyland, Padma Lakshmi, Alicia Silverstone, Harvey Guillen, Laura Linney, and Rosie Perez.

“I stopped making clothes that everybody thought they wanted me to do. I just started making things that I love to do, and I’m glad that a lot of people that want to wear them caught on,” Christian told Fashionista backstage at the event, which included a collection full of soft neutrals, black and tulle.

He added, “Even if you don’t have everybody on your side — I mean, I feel great when Janet Jackson calls and wants five looks.”

Check out + pictures of Janet Jackson, Sia, Alicia Silverstone and more at Christian Siriano’s fashion show…