BALLER PARTY!! Jay Z Throws A BRUNCH PARTY . . . And It's Attended By The BIGGEST BALLERS IN MUSIC!!! (PICS)Author:MTO StaffPublish date:Feb 12, 2017Yesterday was the annual RocNation pre-Grammys brunch . . . and it was full of ballers. You gotta love Jay Z's business acumen. The brooklyn mogul went from selling crack to Brunch parties signing all the biggest artists in the game.