If I were a hero, I'd be Martin Luther (Part 2421)...

 Superhero Anydays

This is a panel from I think DC's Legends miniseries, which shows a number of the "Detriot" Justice League.

Vibe, Vixen, Elongated Man, Martian Manhunter, Gypsy, and Steel, all JLA members.  Also here we have Firestorm (a former JLA member) and Cosmic Boy (a Legion of Super-Heroes founder)

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And today we also have a rather hunky Robin cosplayer!

POLT