The hymn calls for the original song.

Allen. According to Baidu Encyclopedia, the original song of the hymn "Call" is Allen, which was included in the album "Call of Love" released on August 20th, 20 13. Alan was born in Kangding, Sichuan, on July 25th, 1998, and in Beautiful Valley, Danba, Sichuan. She grew up in Chengdu and is a Tibetan female singer in China.