This month, Netflix released a new documentary that offers a look inside the life of one of the world's most prolific pop stars. The film, called Gaga: Five Foot Two, captures a tumultuous year in the life of Mother Monster. We learn that Gaga suffers from fibromyalgia and endures chronic pain that stems from an old hip injury. We got a behind-the-scenes look at her incredible Super Bowl Halftime Show performance. We got a glimpse of her work on American Horror Story. And, most shocking of all, we find out she still feels a bit raw about her feud with Madonna. In order to add proper context to the deeply personal moment, we decided to do little research and recount the entire history of their rivalry. Strap in.