Photo: Drew Barrymore

Though rumors of Drew Barrymore’s engagement to Will Kopelman have been swirling all week, the actress finally confirmed them this morning via the glowing picture above.  Kopelman, an art consultant, popped the question in Sun Valley, Idaho over the holidays (where the two were vacationing) with a 4 carat diamond ring from Graff.  So now the real question—what will she wear for her third walk down the aisle?  If she needs help, Kopelman’s dad was the head of Chanel…