Previously we reported that girl group 4minute would be making a joint performance with American R&B singer Amerie on stage. Now the moment we've all been waiting for has finally arrived as the six girls perform Heard 'Em All on KBS Music Bank! 4minute and Amerie had originally collaborated a month ago to add a little k-pop taste to the track. After arriving in Korea and practicing vigorously, they gave everyone a sample of what was to come by performing at the Kia Motors Auto Show. The American singer appeared on M! Countdown solo last night but this time she comes with five new special Korean girls. It's been a long time since we've seen all the girls of 4minute on stage together. Looks like it's a reunion and a collaboration of sorts. Watch below as the girls of 4minute reunite for the fans and put on one powerful performance with Amerie as they show everyone how it's done. http://www.youtube.com/watch?v=Hxnxr3J9Tak