Mr Know It All
- Genre
- Lovers Rock, Roots Reggae
- Year
- 1979
- Album
- Be Your Self
“Mr Know It All” (1979) is a lovers rock, roots reggae recording by Gregory Isaacs (active 1968–2010). It appears on the album Be Your Self, a 4-track release. The JamaicansMusic Listen catalogue holds 747 playable Gregory Isaacs tracks.