Ever since its inception in 1871, the FA Cup has been renowned for shock results, massive upsets and David vs Goliath stories.
Steve Freeth, Kelly Somers and Sam Matterface take a look back at some of the biggest upsets, as well as who could write their names in the history books this time around.
This weekend brings plenty of interesting fourth round clashes, including Walsall v Leicester, Wrexham v Sheffield United as well as Reading's visit to the Theatre of Dreams to take on Manchester United.
Several teams will be out to prove a point, but who could be successful in upsetting the odds?
In the video above, Sam, Kelly and Steve have their say on where we could be in for a surprise this weekend.