Wang Xiaoyuan.

According to QQ Music, the original singer of "When We Get Old" is a song sung by Wang Xiaoyuan. Wang Xiaoyuan composed the music, Wang Xiaoyuan wrote the lyrics, and was later sung by other artists.

Wang Xiaoyuan, a new music artist, is an American-style singer-songwriter. He is capable of arranging, composing, writing lyrics, music production, singing, etc. He is an all-round new music creator.