How to unlock the 4th world in Plants vs. Zombies 2 - Arqade

How do you unlock the 4th world in Plants vs. Zombies 2 ??? I've got all 72 stars from the previous 3 worlds, but I can't seem to enter the 4th world. I think I was given a chance to enter the 4th

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How to unlock the 4th world in Plants vs. Zombies 2 - Arqade

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How to unlock the 4th world in Plants vs. Zombies 2 - Arqade

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