"Wu Ti" (Untitled) is my absolute favorite song from the Word of Honor OST and we are lucky to have three versions of it. It's a beautiful song, performed beautifully by the singers, and it's often featured in emotionally touching scenes.

The original version by Hu Xia

• Official music video: https://www.youtube.com/watch?v=Hr3Cr2dHoww
• Full solo performance in the WoH concert (VIP): https://www.youtube.com/watch?v=CsuZMm3O0YE
• Concert performance clip: https://www.youtube.com/watch?v=tZD2eikEMFY
• One-hour loop video: https://www.youtube.com/watch?v=IRKBbrpaLuE

Zhang Zhehan's cover

• Full solo performance in the WoH concert (VIP): https://www.youtube.com/watch?v=Q0cQGrw0jFs
• Concert performance clip: https://www.youtube.com/watch?v=oK1k9ofJAOA
• Full concert performance from a fancam: https://www.youtube.com/watch?v=yXr3oanMlp4
• Concert rehearsal: https://www.youtube.com/watch?v=P-1JV99uwIg
• A capella clip from a livestream: https://www.youtube.com/watch?v=_7l0dirukcs
• Zhang Zhehan singing Word Of Honor OSTs (minute 2:01): https://www.youtube.com/watch?v=WiL84umcjXc&t=121s 

Duet version by Hu Xia and Zhang Zhehan

• From Viya livestream: https://www.youtube.com/watch?v=7xDwTs3buBY

Bonus: Interview with Hu Xia about the song (VIP): https://www.youtube.com/watch?v=phuWbOsClxU

Yes, I saw that! Liu Yuning is a great singer. It was awesome to see a live performance of Tian Wen with the original singer.