There's a website called 'LiveDesignOnline' which has a 70 minutes long documentary/presentation of Gaga's Halftime Show.They talk about the stage design,the concept and all the BTS details about the show.You can watch the whole presentation by registering on this website. Once you register,you will get the access to the presentation and BTS photos.   I just finished watching the whole presentation and I've summed up the details that I found interesting- -Gaga was always so open t