Lollapalooza announced its lineup today, with headliners including Soundgarden and Lady Gaga. While the official roster is undoubtedly exciting for fans of the festival, last week's teaser bill was just as fun. As fans and blogs were making their prediction as to who would play this summer's festival, Lolla organizers released the image above: a Wheel of Fortune style list with only the O's filled in. This piqued interest of the individuals who had been guessing, either confirming or confusing their predictions, as well as those people waiting for an official announcement. It's an obvious gimmick, but still a good way for the festival to build on the internet buzz that Lollapalloza had already gained.