I don't have Project Diva 2, so unfortunately I don't know the song.... but it's one of the outfits from that game. Miku has red eyes, her usual long blue pigtails, and wears glasses. The music video has a sort of 'Alice in Wonderland' theme to it where she's a giant and plays with a dollhouse, and then she gets sucked into that world somehow. She also wears casual clothes like a white jacket, a plaid skirt, and I think striped socks on.
Links to the youtube video would be amazing! Thanks so much in advance!