This song is just straight up party, brought to you by the DJ team of Loo & Placido. They are one of the first to legally sample from The Beatles' discography. Loo & Placido are masters of the mashup.
This one mashup samples The Beatles' "Girl" and "Run For Your Life", The Black Eyed Peas' "Let's Get Retarded", Ludacris & Pharell's "Fatty Girl", Kelis' "Caught Out There", and The Clipse's "Grindin' (Remix)". It doesn't sound like a combination like this should work. But it does!