Girls' Generation member Sunny threw a birthday party for Dynamic Duo member Gaeko with her own money.

During the filming for the episode of jTBC 'Girls' Generation and Dangerous Teens' that's scheduled to air February 5th, Sunny arranged for her mentee Kim Sung Hwan to meet with hip hop artist Dynamic Duo.

Coincidentally, the day they met was January 14th, which also happened to be Gaeko's birthday. Sunny left the set for a moment and returned with a cake, surprising Gaeko.

Sunny admitted that she had bought the cake with her own money, and Gaeko was further moved by her thoughtfulness.

"Today is a rare day. Girls' Generation spent their own money to buy me a cake," he said happily, thanking Sunny.

Gaeko then bragged one more time via his Twitter page later writing, "Girls' Generation member Sunny used her own money to buy me a cake."

"I didn't tell Soomi yet," he playfully added, referring to his wife.

On the same episode, Dynamic Duo offered some good advice to aspiring hip hop musician Kim Sung Hwan, guiding him on the kind of music to listen to and study.

Source & Image: MyDaily