It's an idol group explosion this week, as many idol groups came together for special episodes of various TV shows for the ongoing Chuseok festivities. The '2010 Idol Star Dance Battle' was recently broadcast, where many popular groups, such as missA, SECRET, 4minute, After School, BEAST, MBLAQ, U-Kiss, INFINITE, 2AM, and IU, took to serious challenges.  On the other hand, the funniest of gag women, Jung Juri, Kim Shin Young, and Kim Jisun, battled it out with a vast range of parody performances. Check out some of the performances below. Round 1: missA http://www.youtube.com/watch?v=iR9F8_r5G2Y Round 1: SECRET + Result http://www.youtube.com/watch?v=QliotnfYtBE Round 3: 4minute http://www.youtube.com/watch?v=duOaR1XSJYo Round 3: After School http://www.youtube.com/watch?v=6SC6b8G2mlc Round 3: Result http://www.youtube.com/watch?v=WtO_fKvyI0M Round 4: IU http://www.youtube.com/watch?v=7SXmAwNCddo Round 4: Milk Caramel (ZE:A, U-Kiss, INFINITE) + Result http://www.youtube.com/watch?v=EjklLs6HuyE Round 5: BEAST vs. MBLAQ http://www.youtube.com/watch?v=ci69-cr7U2Y Round 5: Result http://www.youtube.com/watch?v=2heAyNgSYAA Round 6: Kim Jisun vs. Jung Juri http://www.youtube.com/watch?v=agE8ycvhXzk Round 6: Result http://www.youtube.com/watch?v=fOoaqg9bP_0 Round 9: Miss AM (2AM) http://www.youtube.com/watch?v=DmlfdtTVVvg Round 9: Kim Shin Young + Result http://www.youtube.com/watch?v=WyAQhhfroYI Source: Crazycarrot260 Photo: Crazycarrot260