【星光大赏】肖战演唱《余年》温柔全场 现场唱功太能打了 2019 Starlight Awards (posted Dec. 29, 2019 by Tencent):  https://youtu.be/Mg66CFuREj4

Stage: Xiao Zhan - "Yu Nian" | 2021 iQIYI Scream Night | 2021爱奇艺尖叫之夜 | iQIYI (posted on Jan. 15, 2021 by iQIY): https://youtu.be/Mr2XecnJa8E

He improved quite a bit in the second performance. 

EDIT: 

Here's a cover:

纯享版】阿兰/黄霄雲《余年》《天赐的声音2》No Noice /浙江卫视官方HD/

https://youtu.be/PqtiyFCauGY

They sang so well.