VIDEO : Gigi Hadid Celebrates 21st Birthday With Taylor Swift

DEBY / AKM-GSI Gigi Hadid knows how to throw a party! The 21-year-old model celebrated her milestone birthday at The Nice Guy in Los Angeles Thursday, and tons of her celebrity friends turned out to support her. Taylor Swift , Hailey Baldwin , Kendall Jenner , Jaden Smith , Kourtney Kardashian , Khloe Kardashian , Lily Aldridge , Ashlee Simpson-Ross , Evan Ross , Shanina Shaik and more stars dressed in red, white or black outfits. The birthday girl wore a pair of high-waisted white shorts and a silky black camisole that was short in the front but cape length in the back.