In 2017, boxer Floyd Mayweather and music producer DJ Khaled used their social media platforms to promote cryptocurrency to their followers.
source https://www.google.com/url?rct=j&sa=t&url=https://sports.yahoo.com/floyd-mayweather-settles-shilling-alleged-32m-cryptocurrency-scam-without-disclosing-paid-233116984.html&ct=ga&cd=CAIyGmM2Nzk3ODA2ZWViNjVjODI6Y29tOmVuOlVT&usg=AFQjCNF3TzZtzaeZcZ48s7M-EAPqNTGd5A
