The stars of The CW's Arrow, Flash and Supergirl were on Conan O'Brien last night and kicked off their appearance with a discussion about the difficulties of wearing superhero costumes. Check out Amell's shifty eyes when O'Brien mentions that Green Arrow is getting a new costume. As it turns out, that was just the set up for a joke but Amell did look a bit worried there, as if something that shouldn't be discussed was about to be leaked. Perhaps we'll be seeing Green Arrow in a new costume during the show's SDCC panel on Saturday. Last month, Amell confirmed a new costume was in the works, though it remains to be seen rather it will be a slight tweak to Oliver Queen's Season 4 duds or a complete overhaul.
Conan also referenced Melissa and Grant's time on Glee and asked whether there's any chance of a musical crossover between the two shows. Unfortunately, nothing is in the works...yet.
The Flash kicks off Flashpoint on Tuesday, October 4. Arrow season 5 premieres Wednesday, October 5. Supergirl season 2 kicks off Monday, October 10.