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Osoblog has been reporting on the mental crowds in Trafalgar Square waiting for the stars of Harry Potter and the Deathly Hallows Part 2 to arrive, and those fans have gotten what they wished for. Emma Watson, Daniel Radcliffe and Rupert Grint have arrived on the red carpet. Watson is wearing a gray Oscar de la Renta gown with an embroidered strapless bodice and full tulle skirt. Radcliffe is wearing a Simon Spurr suit.

Click through for more views of Emma Watson adding a white blazer over her gown, and also looking a bit emotional with Daniel.

And see a gallery of Emma's red carpet style at previous Harry Potter premieres here!

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[Images: DAVE M. BENETT/GETTY IMAGES]