New Guitar Item?

Hello, while I was posting the new homepage post, I realized that there was a penguin behind Cadence that was strumming an unrealesed guitar! The guitar sort of looks like the guitar you can unlock when you buy a 3 month membership card. But, this guitar is black and green, it has a black base with green swirls all over it. Could this be a new guitar coming to the Ultimate Jam? We will have to wait and see for ourselves when the party starts July 19th!