Yesterday, former UFC wrestler Ben Askren surprised his Twitter followers by changing his username to "Bitcoin Halving, May 13" alerting the entire community to the upcoming Bitcoin Halving. Ben is known to many as an avid enthusiast of the crypto-currency world, and was once sponsored by Litecoin and other projects within the blockchain ecosystem.

Many celebrities from different sectors have done similar promotions, do you know any of them? Feel free to comment on another similar case or express any opinion you wish about it.