June 26, 2014 - submitted by Carkid, United States of America

Q. Hey Oracle,

At BBC Radio 1's Big Weekend 2014 during the middle of the opening song Paradise Jonny signaled someone who I'm guessing was offstage with a thumb going down. Can you tell me what that meant?

The Oracle replies:

You see a lot of musicians doing this. When you see the thumb / finger gesturing up or down, they are signalling to their sound engineer. It's to let them know that they need to have what's coming through their monitors turned up or down.