Live footage of the song : I hear a Symphony?

[Treasure]

I've been listening to a lot of old songs from Jackson5 /The Jackson's lately
And I wonder if there is any live footage of the song :I hear a symphoney (see link)
I searched the internet already, so I am afraid it just isn't there
I know the background vocals were sang by Jackson 5 , but does anyone know who sang this particular line -----> 1:07 - 1:15
https://www.youtube.com/watch?v=vthgXWriPIo

Is it Jacky? or Jermaine?... i just want to know :girl_sigh:

Thanks in advance

 

[Lynn88]

It's Jackie singing. He was the one with the high voice.

 

[Treasure]

It's Jackie singing. He was the one with the high voice.

I thought/ hoped for Jacky... Thank you very much