This is driving me craaaazy! (Day 48)

After going through all our pictures from the weekend I see this one. And I’m stumped. I have no idea what song it is. What we are playing? All I know is that I am the fretboard on the left and I was rocking it. And Meghan (& possibly Dane) were singing it.

I’ve googled the lyrics I can see and asked everyone present in the room while this was going on and no one knows.

Help me.

It’s driving me crazy!

In case you can’t see the words on the screen….“…hear me louder Win or lose? Win or lose? Win or lose? Win or lose? Win or lose?…..”