Last night, designer Zac Posen celebrated the launch of his new line Z Spoke with a dinner sponsored by Saks Fifth Avenue in Beverly Hills. The who’s who came out like John Legend and his model girlfriend Christine Teigen. Rachel Bilson, Amber Valletta, Emma Roberts, Eva Amurri, Nicky Hilton and Olivia Munn all came out to support the designer wearing pieces from the new line. (more…)