In the beginning of the song, there is a static that is easily noticeable. It does go away shortly after though. Besides that, this is turned out to be an awesome mashup by Kaskade, who has really been getting after it since EDC. He mixed some of the more popular songs from EDC into an album:  Electric Daisy Carnival, Vol. 1 (Mixed by Kaskade) – Kaskade,  which is very very good.

Deadmau5 vs Haley- Falling In Love with Brazil (Kaskade Mashup) [Link]
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Haley is also featured in the following song:

This Is How It Goes (Kaskade’s Grand Club Edit) – The Grand (Mixed)