It's not the same bassline....but it's a ripoff. The rhythm arrangement is also extremely similar. It's the exact same groove. Plus the EP is the same in tone and doing the exact same rhythmic dynamics on the upstrokes. The melody is different though. It's completely obvious on first-listen that Pharrell was listening to 'give it up' when he made the song and set out to do a similar song. I don't think anyone would dispute that. But I don't think there's anything wrong with that artistically....nor legally.