with Kim Jo Han
 with JK Kim Dong Wook and his jazz project group ‘Zebra Band’
 Jay Park
 with Jay Park
 god - One Candle + The Place You Want to Be.
 Kim Tae Woo - Love Rain, Echo
 with Kim Tae Woo
 with Jang HyukBoth of them go way back together. I think they still in same company and Jang Hyuk used to have collaboration with g.o.d third album music videos and song featuring too.