It wasn't released tonight guys! Don't worry, if anything it'll get released tomorrow at 11pm which means that it'll go as how it was originally planned unless they release it at 8am or 12pm EST
Search the Twitter tags for "Katy Perry new song" [since that's what most of the GP use since most don't know the name yet] and the GP is LOVING and LIVING for it. I've seen so many tweets from regular people that say "Can't wait to buy it on itunes"