Good bye my beloved teacher :')

I don't know how to begin, but I want to tell you how I do love my teacher. He is the kindest, the most friendly, and the craziest teacher that I've ever had. He sang me a song I don't know what was the title because he made it spontaneously, it's about my favorite idol, Irfan Bachdim, he knew that I admired Bachdim so much. And as you know, he sang that song using Indonesian language! I'll post the lyrics later.xx