Why did KARA members shed tears during a Japanese performance?

Heavy tears from girl group KARA have been causing fans to cry as well. Through an online community bulletin, photos of KARA members shedding tears during a performance have been uploaded, and they have been gathering much attention. The photos were from a performance that the five members specially held for the last broadcast of TV Tokyo's drama, "URAKARA". Because some of the members have been engulfed by the contract controversy for the past two months, it looked as though the girls were expressing their heartache and distress. The five members of KARA wore white dresses while singing a ballad song - drawing sadness from the audience. Seeing their tears, netizens commented, "It would be good if the KARA situation was amicably resolved soon", "I want to see their smiling faces", and "Cheer up." Source: Newsen via Nate