Dogecoin is a cryptocurrency that was created as a joke in 2013. However, it has since gained a large following and has become a legitimate investment option for some people. Elon Musk, the CEO of Tesla and SpaceX, has tweeted about Dogecoin multiple times, which has caused the price of the coin to surge on multiple occasions. However, it is important to note that the tweets are often sarcastic in nature and do not necessarily indicate a serious endorsement or investment. It is also important to thoroughly research and understand the risks involved before investing in any cryptocurrency, including Dogecoin.