Jessica Tung brought her brand new guitar and played us the first song she ever learned on guitar. Originally written and recorded by Wayne Cochran in 1961, Pearl Jam recorded it for a benefit album in 1999, which is where Jessica (and a lot of other people heard it for the first time). It’s a great song, and Jessica does a great version of it.
(There are links in the Original Artist & Links box to both the Pearl Jam and Wayne Cochran versions. You should listen to the Wayne Cochran version at least once.)