Former Jewelry member Seo In Young is currently in the last stages of preparation for her comeback this December. This will be her second cycle promoting as a solo artist since withdrawing from Jewelry last year. Her solo debut kicked off with great success with the release of her digital single, "Love is Bitter, Pain is Calling",�back in June 2010. Psy will be featuring in Seo In Young's next title track, which was reportedly his thank-you gift to the singer after she guested in one of his tracks, 'Thank You',�for his 5th album 'PSYFIVE'. Many of her fans are anticipating her comeback track, as it was recently hinted that it will be a strong song in the dance genre. Source: Daily Economy