Rihanna wore a kimono-like, silk lavender and red floral wrap dress for her friend's big day. The 2015 MTV Video Music Awards nominee paired the getup with silver stiletto sandals.
An insider at the event told ET that Rihanna performed a few songs from the balcony overlooking the crowd at American Whiskey in New York City's Midtown neighborhood. During her performance, a slideshow of pictures of the couple was displayed. The 27-year-old pop star, who stayed at the party for a few hours, also said a few sweet words about the newlyweds.