'Maybe they can smell something on us!" says Halca, 18, one half of hip-hop- meets-J-pop duo HalCali.
The "they" in question is the gaggle of high-profile artists and producers who have fallen over themselves to work with the girls, including Yuki, Fantastic Plastic Machine, Nomiya Maki from Pizzicato 5, Takkyu Ishino and members of Rip Slyme, m-flo and Supercar.
"I think maybe it's because we're pretty open to new styles and ideas," says Yucali, 19, the duo's other half, as they speak with The Japan Times in their first-ever interview with English-language press. "Anything goes. So if someone collaborates with us they can add their taste to HalCali."
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