Beyonce, Jay-Z, Rihanna Attended The Roc Nation Pre-Grammy Brunch1 Comment Solange, Kelly Rowland, Rihanna, Jay-Z and Beyonce were just a few of the stars in attendance of the annual pre-Grammy Roc Nation and Nokia brunch Saturday at the Soho House. Grammy nominee Miguel, Timbaland, Jill Scott and Kylie Mingoue also attended the exclusive event. Jay-Z is one of six acts nominated for six awards at Sunday’s Grammys. Rihanna is up for three trophies, and Beyonce is nominated for one award. The crowd Saturday was full of members of music industry, who mingled with performers like The-Dream, Jordin Sparks, Melanie Fiona, Diane Warren, Christina Milian, MC Lyte and Santigold.