Guess it's time to just admit that it's Jay-Z's world now, and we just live in it. Everything he does is a headline these days. But really, unless you're billionaire investor Warren Buffet, you aren't gaining access to that world. What? That's right, the legendary investing tycoon was throwing up Roc hand-signs at the rapper's 40/40 Club party last night. Really!

Jay-Z, sans Beyoncé and Blue Ivy, made his first public appearance last night since the birth of his daughter, to celebrate the $10 million renovation of his club on West 25th Street. Also on hand were Spike Lee, Russell Simmons, Questlove, Ashanti, and New York Yankee C. C. Sabathia. More adorable photos of Jay-Z and Buffet can be found here.

According to US Magazine, after leaving 40/40 a little after 1 a.m., he headed over to 1Oak in the Meatpacking district, where a source says, "He wasn't doing anything crazy. Just chilling, laughing, and talking."

And to triple-confirm, Jay-Z tells Rolling Stone that he'll still be using the word "bitch," and the story and poem were fake. He added, "haaaaaa."