Taylor Swift is going to court against a DJ she says groped her - here's what you need to know
Mueller sued Swift in 2015, alleging that her accusation that he groped her butt, during a meet-and-greet in 2013, caused him to lose his job.
Swift then countersued Mueller a month later.
Two years after Mueller and Swift sued each other, their case is about to go to trial.
Here is everything you need to know about the impending Mueller and Swift trial: