EntertainmentCelebrities Diana Ross to perform at Ashlee Simpson and son Evan Ross' wedding Actor Evan Ross (L) and Singer Ashlee Simpson arrive at the premiere of Lionsgate's "The Hunger Games: Catching Fire" at Nokia Theatre L.A. Live on November 18, 2013 in Los Angeles, California. Photo Credit: Getty Images / Jason Merritt By JULIE GORDON firstname.lastname@example.org @jbgordon Updated June 24, 2014 4:08 PM Print Share fbShare Tweet Email Talk about a "Supreme" wedding singer! Music icon Diana Ross is slated to perform at the upcoming nuptials between her son, Evan Ross, and Ashlee Simpson, E! News reported yesterday. Rhonda Ross Kendrick, who is Diana's daughter and Evan's half-sister, will perform with her 70-year-old mother. Big names in the music biz are expected to attend the wedding, too: Stevie Wonder and Smokey Robinson are on the guest list, according to E!. Simpson, 29, announced her engagement to the "Hunger Games: Mockingjay" actor, 25, in March after the couple had been dating for nine months. Simpson has one son with ex-hubby Pete Wentz. By JULIE GORDON email@example.com @jbgordon Julie Gordon is the entertainment and style editor at amNewYork, specializing in all things pop culture, celebrity news and fashion. Her work has also appeared in publications including BusinessWeek, Newsday and USA Today. She is a proud alum of The George Washington University. Share on Facebook Share on Twitter Comments We're revamping our Comments section. Learn more and share your input.