Star Tracks - Wednesday, January 25, 2006

The pregnant actress arrives in England with daughter Zahara. Plus: Britney & Kevin, Justin & Cam and more

BIRTHDAY GIRL

Mischa Barton steals the spotlight at the Christian Dior fashion show in Paris on Monday. That evening, the O.C. star and boyfriend Cisco Adler celebrated her turning the big 2-0 (on Jan. 24) with a private dinner arranged by Dior.