Hollywood's most fashionable stars flocked to Mercedes-Benz Fashion Week over the weekend, sitting front row as they admired the top trends.

Victoria Beckham's daughter Harper stole the show on Sunday as the singer-turned-designer showed off her Fall/Winter collection in New York City.

The little one sat in the front row with David Beckham and her brothers Romeo and Cruz, wearing a chic navy dress with her hair in an adorable top-knot!

Isn't she cute!?

Meanwhile, Joe Jonas turned the high-fashion event into a date with girlfriend Blanda Eggenschwiler, who checked out the latest collections from Opening Ceremony and Custo Barcelona.

America Ferrera, Bono, Chelsea Clinton and Lucy Liu all sat front row at the Edun show.

Another odd couple sitting together? Colin Farrell and Petra Nemcova, who were snapped getting cozy at Edun's event.

Check out the video above, and click "Launch Gallery" below to see more stylish stars at Fashion Week, including Paris and Nicki Hilton, AnnaSophia Robb and Bella Thorne!