Gigi Hadid Steps Out in Sexy Dress After Zayn Malik Split and Hangs Out With Ex Cody Simpson's Sister Alli Simpson

Gigi Hadid and Zayn Malik have not commented on their breakup but the 21-year-old model may have sent a few messages without saying anything.

She hosted the Maybelline New York Beauty Bash at the Line Hotel in Los Angeles Friday, a day after E! News learned about the breakup, turning heads in a sexy black spaghetti strap mini dress adorned with a front button panel and with side zip-up slits, paired with metallic pumps, a metallic choker and dark berry lips. She also reunited on the pink carpet with an old friend—Alli Simpson, the 18-year-old sister of one of her other ex-boyfriends, Cody Simpson.

Alli, also a model and singer, posted a photo and video of her with Hadid on her Instagram page.