Brian Esposito from Ellen's Stardust Diner in NYC sings all the parts himself. I saw him online earlier in the month and ended up at this diner by chance not knowing thats where the viral video i had seen earlier originated. Lucky I had my GoPro in my bag to capture him being awesome. He ended up being my waiter and i got to shake his hand and talk to him about his song choice, he's been doing it a few months now. Very nice guy, talented and a blast to watch. They sing a lot of different songs, definitely an interesting experience should you find yourself in the city.