This dancehall jam is in fact a reggae-fied cover version of a track originally recorded in 1982 by Dutch synth pop group Spectral Display. The song finds M.I.A. taking a rest from the album's main theme of information politics and instead she sings about actual love.
"Lean On" was originally sent by Major Lazer to both Rihanna and Nicki Minaj's camps as a slower reggae track. After both parties rejected the tune, Major Lazer recruited Danish singer MØ to supply vocals and recorded it themselves.