Beyoncé Knowles celebrated Valentine's Day yesterday out at brunch in LA with her sister, Solange, and her former Destiny's Child bandmate Kelly Rowland. Their meal was also a belated birthday celebration for Kelly, who reached the big milestone of 30 on the 11th. It was Beyoncé's latest instance of supporting the women closest to her, after she attended Sunday's Grammys and cheered on her pal Gwyneth Paltrow during her performance with Cee-Lo Green. Cee-Lo's stylist spoke about Beyoncé being in the wings to root for Gwyneth, saying the ladies hugged afterward just offstage! The good times continued for Beyoncé following the show, as she was among those who got to see Lady Gaga perform at a post-show party along with her husband Jay-Z.