to end the confusion with britney playin madonna on glee and more info about the E.P. this is the link of Ryan Murphy's interview about the Britney / Brittany E.P. http://www.shoppingblog.com/blog/8041010 watch the video. this was recorded back in late june early july within those weeks.
Quote:
Ryan Murphy: The cast came to me they're like please do this. and i was like what do you mean? and you know they are all 22, 23, 24 sometimes 18. they grew up with Britney Spears. you know Britney Spears they wanted to, the girls particularly wanted to be her.