Johnny Nash had the international hit, but for my money, the great version of the Bob Marley composition Stir It Up was done by The Wailers.
And the best version of The Wailers was this one.
Here's Bob Marley and Peter Tosh on guitars, Bunny Wailer on percussion, Carlton and Aston "Family Man" Barrett on drums and bass respectively.
I'm thinking that's Earl Lindo playing keyboards, but I'm not sure.
From "The Old Grey Whistle Test" in 1973.
Stir It Up.