Khalil Rountree Jr. is a professional mixed martial artist competing in the Light Heavyweight division of the UFC. www.ufc.com/athlete/khalil-rountree-jr
Gary Clark Jr. is a Grammy award-winning blues guitarist and singer. Look for his new album, "JPEG RAW," on March 22. www.garyclarkjr.com
Robert F. Kennedy, Jr. is an attorney, founder of the Waterkeeper Alliance and Children’s Health Defense, author, and 2024 candidate for the office of the President of the United States of America. www.kennedy24.com
Pro boxer Roy Jones Jr. captured championships in numerous weight divisions, at one time holding a record-breaking seven heavyweight belts simultaneously. In 2003, Jones made history by becoming the first middleweight champion to win a heavyweight title in 106 years. Jones officially retired from the sport in 2017, but signed on earlier this year to fight Mike Tyson in an highly anticipated exhibition bout.