The song is a fantastic sampling of Misirlou, a song which many will recognise most from its featuring in the Quentin Tarantino movie Pulp Fiction.
The Latin feel to the music is completely infectious, and the modifications made by the Black Eyed Peas to a track which is so well known add rather than subtract from the effectiveness of it.
The track begins exactly the same as Misirlou does in Pulp Fiction with the characteristic guitar riff automatically taking the listener to the glamorous place of that film, then the Black Eyed Peas kick in with a quick "Pump It", telling you that this is not the ordinary version. To be fair the lyrics aren't concerned with anything deeper than a need to dance, but they don't need to be.
The characteristic infectious beat of Black Eyed Peas tracks permeate this single, making it almost impossible to sit still to. The vocals blend so easily with the existing track, adding more layers of harmony and making an already complex track more so, but giving a casual listener something to hang on to.
The additional melodies and verses sung by Fergie are an interesting addition and are easy to almost immediately sing along to, following given precedents of sequence and step followed by many R&B tracks.
Pump It is an infectious track, which is a brilliant modification of an already classic track. Definitely a track that will go far.