On December 4 episode of JTBC's television show 'Knowing Brothers', KAI and Lee Seung Gi made a guest appearance.

Lee Seung Gi laughed and answered, "I don't actually know the exact amount of the pay I get."
Then, the hosts started to state how Lee Seung Gi gets paid a great amount of money nowadays.
As KAI listened to this, he looked at Lee Seung Gi and commented, "Oh, is that why you gave me that expensive chair?"
He explained, "Not too long ago, Lee Seung Gi called me and asked me to take this one chair from his home. It was a really expensive chair. You must be making tonnes of money, Seung Gi!"

He continued, "As we were filming 'New World' together, I couldn't stop loving KAI. He's works really hard, and I just loved every bit of him. So, I wanted to give him something."
To this, one of the hosts Lee Sang Min playfully commented, "Oh, do you always give a gift to people who you work with? Maybe I need to start working with you too!"
Lee Seung Gi answered, "Ah yes, it's kind of a habit of mine. When they do well on the project we are shooting together, I want to buy them something."

(SBS Star)