What does Justin Timberlake have to say about performing alongside music icon Madonna last night? Kevin Frazier from ET ONLINE caught up with Timberlake today in New York - the complete opposite side of the country from where he took the stage in Los Angeles last night! When Kevin asked Justin if he was jet-lagged, Justin replied, "I'm on about four hours of sleep and about eight gallons of caffeine right now."

On the concert, Timberlake told Kevin: "It was cool, you know, Dodger Stadium, it's you know, it's large. It was fun."

On Madonna, Justin says she's in amazing shape: "As we were rehearsing she was running circles around me."

Justin was in NY's legendary train terminal Grand Central Station to launch Callaway Golf's new FT-iQ driver.

Source: ET ONLINE