Elon Musk Sells Song About NFT as NFT: Did Someone Buy It for 420M Dogecoins? Elon Musk sent out a tweet "selling a song about NFTs as an NFT" for 420M Dogecoins, and someone might have just taken the bait (or not). Photo : Maja Hitij/Getty Images Elon Musk sent out a tweet "selling a song about NFTs as an NFT" for 420M Dogecoins, and someone might have just taken the bait (or not). Dogecoin the Money of the Internet Dogecoin is a cryptocurrency initially released in 2013. Created by the software engineers Billy Markus and Jackson Palmer, this fun payment system made its way to the internet and was immediately accepted by the online community. Currently, the Dogecoin has a value of $0.06.