Gwyneth Paltrow flashed a smile yesterday when she arrived at LAX. The actress is back on the West Coast after logging time in LA just last month. During the interim, she stopped in NYC to be honored by Columbia University. Gwyneth wore Victoria Beckham and Burberry Prorsum to attend the school's Gray Matters Spring Benefit Luncheon last Wednesday at the Plaza Hotel. Next, Gwyneth's kids Apple and Moses were the center of her attention when she stopped over in London for a bit. Now that she's back in California, Gwyneth can spend one-on-one time with her husband Chris Martin. Chris and his band Coldplay are in the middle of a string of shows in LA that brought out a range of famous fans like Molly Sims and Stacy Keibler.