Heart rain. Judging from Gong Biao's recent dancing videos, the background music he often uses is Barbie Girl, Heart Rain and Ghost Party. It should be noted that these music may only be used in some specific competitions or occasions, not necessarily all his dance music. If you want to know more about Gong Biao's dance music, you can get more detailed information by watching his dance videos, attending his dance workshops or communicating with him.