This bare-bones version of Joanne, a song from the album of the same name, is just Stefani on the piano. (Lady Gaga‘s real name is Stefani Joanne Angelina Germanotta.)
Joanne was Gaga’s aunt, who died at just 19 from lupus. In Gaga: Five Foot Two, she plays a verison of this for her grandmother, saying that if it’s too sad, they can turn it off. Her grandmother says it’s beautiful. It is.