"As long as Pete and Joe are there, it's gonna be jumping"

This quote by Jay McShann is describing a dynamic and interesting atmosphere. He is suggesting that as long as Pete and Joe exist, the environment will be full of energy and enthusiasm. This might be referring to a party, a gathering, or a performance. It might likewise be referring to a place, such as a bar or club. In any case, the existence of Pete and Joe will make sure that the environment is dynamic and amusing. It is likely that Pete and Joe are well-known for their capability to create a fun and amazing environment, and Jay McShann is confident that they will have the ability to do the exact same in this circumstance.