according to the query of cool dog music, I know that the most important thing for you in my world is the lyrics of the song "I know you", sung by singer Liyang/Xu Jun, released on April 16th, 214, written by Liyang SEv7n and composed by RL.

Some lyrics are: I know you are the most important in my world, and I know you and I can't live without your heartbeat. I know you are always good to me, and I know you are the most important. I know you can't live without your smile, and I know you are the best for me. I know. I always knew. I know.