2AM's Jo Kwon recently revealed his close friendship with his fellow members and label mates�including Junho and Wooyoung from 2PM.

Jo Kwon recently shared on his Twitter, "Just ate and we're now relaxing... Kwon Udong", along with a photo taken with Wooyoung who is widely known for his "udong" cheeks.

The selcas also show Jo Kwon and the other 2AM members smiling at the camera with comical expressions showing their playful side during rehearsal. Jo Kwon also shared a more serious, yet adorable selca taken with 2PM's Junho.

Upon seeing the photos, fans commented, "All of the JYP artists seem so close", "Jo Kwon is the atmosphere maker for whichever group he's with", and "2PM's Junho is handsome even while just calmly looking at the camera."

The JYP artists recently wrapped up their 'JYP Nation in Japan 2012' concert on the 18th and 19th.

Source & Image(s): Jo Kwon's Twitter, TV Daily via Nate