The world of <a href="/TheCWSupergirl/?refid=13&__tn__=%2Cg"> Supergirl</a> continues to grow thanks to the upcoming debut of Lex Luthor! Head here for more on the iconic villain's Season 4 appearance: <a href="https://bit.ly/2J55kyq" target="_blank"> <span> http://bit.ly/</span><wbr /><span ></span>2J55kyq</a> <a href="/hashtag/dctv?refid=13&__tn__=%2Cg"> <span > #</span><span >DCTV</span></a>