In addition to the 4-show crossover betweenand, The CW announced that a special musical crossover of The Flash and Supergirl would occur during the back-half of the upcoming season of DCTV shows. Well just a day later, The Hashtag Show is reporting that the director of the crossover is none other than Joss Whedon.Given Whedon's history with themusical - Once More, With Feeling andg, Whedon is definitely a natural fit for such a crossover. Oh.. and he also directed some film calledand its sequel,. Now if only Warner Bros. could get Whedon into the DCEu somehow...Consider this a rumor for now but The Hashtag Show, while infrequent scoopers, have a pretty good track record going all the way back to their reveal that Finn Jones would play Danny Rand in