does anyone know how to get the harmonic effect that saosin uses in songs like mookies last christmas and You're Not Alone?

for anyone who knows what im talking about, help me out.
Veteran UGer. Suck it.
I never listened to them, but I can help you if you give me a link to their song and tell me when those effects come. Or maybe describe it more.
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Ok, I've listened to it, and I think it might be a synth guitar sound. I'm not too familiar with that effect. The best tip I can give you is to goto your nearest guitar store, try a pedal and try to find it yourself.

If anyone else can help... http://webjay.org/by/Hinder215/saosin#23451187
Its in the background of the intro of You're not alone.
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mayb its like a pitch shifter....or octave pedal or something and its just the note moved up heaps of octaves...im not too sure but saosin are ****ing incredible lol....