Diana Ross, queen of disco, proved she's still a style icon at age 73 with the outfit she wore to her son Ross Naess's wedding this past weekend. The iconic songstress donned a flowing, Grecian-esque white gown with a matching shawl, espadrilles, and tassel earrings. Her natural hair and chill-yet-elegant outfit was the perfect combo for the "Bohemian" wedding theme in which shoes were optional. 

Naess wed Kimberly Ryan at Rancho Dos Pueblos in Goleta, California. Also in attendance were Tracee Ellis Ross, Evan Ross and his wife, Ashlee Simpson Ross. Diana reportedly sang at the wedding, as she did at Evan Ross's nuptials to Ashlee Simpson in 2014. This past weekend, Evan sang the couple's first dance song, which Kimberly revealed on Instagram. 

Congrats to the newlyweds! Let us not forget — congratulations are also due to Miss Diana, who shows us how to slay an outfit at every age!