Price of Baby Doge, a new meme-based cryptocurrency, jumped over 100% after the world's second-richest person Elon Musk tweeted a version of the viral 'Baby Shark' song in an apparent reference to Dogecoin. The Baby Doge's price rose to as much as $0.000000002 from $0.000000000916 just before the tweet, according to CoinGecko. Meanwhile, Dogecoin's value rose as much as 7%.