Korea's newest girl group,�Piggy Dolls, has debuted to high praise, as many have applauded their verve and vocals. Naturally, with such an explosive spike in interest, many have wondered what they were like before they debuted. Recently, pre-debut videos of the girls have circulated amongst various community boards, as netizens were spellbound by their performances of "Emotion" by Destiny's Child and their title track, "Trend". The performance took place on December 31st at the "Norazo Concert",� and luckily a fan recorded their two mind-blowing performances which really show off their talented live singing voices. Check them out below! If the girls continue giving it their all as they're currently doing, they'll definitely make it far in the music industry! Tip: Vu Thai