Actor and noted tech investor Ashton Kutcher surprised Ellen DeGeneres on Wednesday with a large donation to the talk show host's wildlife charity on behalf of cryptocurrency startup Ripple.

The twist? The $4 million that Kutcher and his business partner, Guy Oseary, presented to The Ellen DeGeneres Wildlife Fund comes in the form of Ripple's XRP coin — currently third most-valuable cryptocurrency on the market, behind Bitcoin and Ethereum.