Backstage at Brian Reyes, Rachel Bilson had glitz on her finger and a grin on her face. Photo: Astrid Stawiarz, Getty Images

Backstage buzz at the Fashion Week tents is that Rihanna is still texting Chris Brown -- despite a court order that the convicted batterer stay away from her for five years. According to a friend, the "Umbrella" superstar -- who made appearances at the MTV Video Music Awards and also Fashion's Night Out last Thursday -- has Mr. Brown listed in her phone under a fake name.

"I was with her the other night and she was texting Chris," a pal told me. "Another friend said, 'You better stop that.' And she held up the phone and said 'I wasn't texting him, see?'' But it was him under a different name.'"

Meanwhile, at the tents ... Rachel Bilson was flashing her engagement rock backstage at today's Brian Reyes show. The former "O.C." actress has been to known to keep the press guessing about her engagement to Hayden Christensen by stepping out sans diamond, but she was all smiles and bling this morning at the shows.

Also amping up the celebrity wattage were Lucy Liu (who camped at the W Hotels lounge while waiting for the BCBG Max Azria presentation) and Nicky Hilton, who held court next door at the Mercedes-Benz Star Lounge.

Overheard backstage: "Derek Lam? Didn't he design Michelle Obama's inauguration dress?" one fashion newbie asked another. "No," came the reply. "That was John Woo."

Er ... John Woo is the Chinese-born action film director. I think they meant Jason Wu!