Jessica Simpson took to Instagram to post a selfie in honor of her 34th birthday on Wednesday. The former "Fashion Star" mentor's picture finds her posing in front of a sunset in a brown and white chiffon dress. "And the sun sets on 33," Simpson captioned the photo. Simpson, who turned 34 on Thursday, is believed to have taken the picture from an undisclosed honeymoon location. The fashion designer married NFL star Eric Johnson on July 5 in Santa Barbara, Calif. The couple, together since 2000, have a 2-year-old daughter named Maxwell and a 1-year-old son called Ace.