Think you know everything about Lady Gaga — the pop icon, fashion trailblazer, and Oscar-winning powerhouse? This quiz will put your fandom to the ultimate test! From her early beginnings and chart-topping hits to her wildest red carpet moments and personal milestones, we've packed 40 questions that only the most devoted Little Monsters can answer correctly. Whether you've followed her since “Just Dance” or became a fan during “A Star Is Born,” it's time to prove your Gaga knowledge. Are you a casual listener or a true superfan? Take the quiz now and find out if you really know Lady Gaga!