In 1980, during the recording of the Tom Petty & The Heartbreakers album ”Hard Promises“, Petty was looking forward to meeting John Lennon, who was scheduled to be in the same studio at the same time as him.
The meeting would never occur; unfortunately, John Lennon was murdered before he could ever make it into the studio. In order to pay tribute to one of their influences and heroes the band decided to etch "WE LOVE YOU JL" on the master copy of the album. To this day "WE LOVE YOU JL" is seen on every Hard Promises vinyl copy pressed. Hard Promises was Released May 5, 1981.