I'm not that familiar with Glee (I'm pretty sure the show's about a bunch of melodious high schoolers being held hostage by their immortal principal, Dick Clark) but I can't be churlish about Green Lantern colorist Randy Mayor's charming poster.
Explains Mayor, " I originally came up with the idea to mash these 2 subjects together when I saw one of the Glee "Losers" posters online and, thinking I've been working TOO long on a GL title, thought it said 'GLC' instead." My only quibble is that he needed some F-Sharp Bell all up on this — that guy's got perfect pitch!
Here's the full poster. Hat tip to Tom!