Jay-Z was at the grand re-opening of his 40/40 nightclub in New York City on Tuesday night, his first public appearance since the birth of his daughter, Blue Ivy Carter.

While Beyonce and Blue were not in attendance, Jay’s longtime friend Warren Buffet was.

The 81-year-old billionaire, who graced the cover of Forbes Magazine with Hov back in 2010, showed love for Roc-a-fella with the infamous diamond salute: