Here:
They sound great. My question is, how do they do that live and remotely? Even without video, it’s hard to get the delay low enough. Are they all playing to a click track and ignoring each other?
What makes you think it’s live? It looks recorded to me. With a lot of post production.
Me too.
Just the YouTube title – Live on the Today show.
I was talking to a friend about it and he thinks maybe just Belinda Carlisle was live and the rest was pre-recorded.
Belinda sounds really good there. I can’t recall ever seeing her do that well in a concert, and I’ve seen footage spanning 30 years. She just never sings that well live. Of course, for many years she seldom did a concert, on a TV show or otherwise, with less than two intoxicants in her. She’s like David Lee Roth - good in the studio, but didn’t let a song get in the way of a performance. She sounds like she would on a recording here, really good. Maybe singing alone focused her.
I like how Gina lost her headphones at the end 
That would be about the only way to do it. It would just be impossible with the multiple delays to get anything to sync properly.
I’m guessing it was laid down one track at a time with Belinda singing along to the final recording.
I’ve gotten to under 30ms for people in my area, but that’s not with video and there were occasional dropouts. Nothing that would be professional quality.
I had to try to get four kids to sing Ma Nishtanah together over Zoom for religious school. Finally decided I didn’t care what the principal said-- I was assigning one question to each child. They did the first line together, and that was tough. It’s like 14 syllables.
There are apps (like Sing!) that allow you to sing in groups ‘live’ with video. I have no idea how the lag works. But another way to do it is to start with the backing track, then each person lays down their own individual singing part asynchronously, then when you play it back all parts are merged together and synchronized.
Quite a few bands have put out “lockdown” videos over the past year. They aren’t all playing “live” at the same time, but it’s good to see them make the effort. It was especially nice to see Peter Frampton team up with the Doobie Brothers.
4 chicks singing and only one of the needs a microphone?