Depp is concerned about the music stored in his mobile after his fiancee Amber Heard, 28, became a victim of the phone hacking scandal, reported the Daily Star.
"Johnny is worried his new music may get into the wrong hands before he has a chance to finish it," a source said.
The 51-year-old actor is apparently quite serious about coming up with his own rock album.
"Johnny's looking at getting some musicians together for some dates in 2015. He's committed to another Pirates movie in 2016 so he wants to do it before then," the source said.