The song that Luo Jin sang is called '天高地厚' by Shin. It is largely about friendship, the translated lyrics can be found here: lyricstranslate.com/en/%E5%A4%... Follow us on instagram @tangluofanclub
Happy Birthday our lovely Tang Tang! Great to see both of you celebrating each other's birthday together! Best wishes to you and Luo Jin : in good health, loving as ever and happiness always~