SISTAR's Soyu appeared on the April 30 installment of MBC's 'Radio Star' and performed her hit duet song "Some" with another guest on the show, Jun Hyun Moo, rather than her usual partner, JungGiGo.  She also did a rendition of EX's upbeat song "Nice To Meet You."

In the discussion portion, MC Kim Gu Ra mentioned how popular the song "Some" was and asked, "Your ranking in the group has risen up a lot these days, right?"

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Soyu avoided any possible crisis with professional tact, but Kim Gu Ra continued, "Bora's a bit.."  Kim Kook Jin asked Soyu if she felt more confident these days.

Soyu responded jokingly, "It's not that I'm more confident, but I think that firstly, Bora may be below me right now?" making everybody laugh.  

You can check out her lively cover of EX's song below as well as her hilarious "Some" duet with Jun Hyun Moo!