During Goulart's first ever fashion show appearance, she experienced a wardrobe malfunction when her top fell open. The unfortunate incident made many Brazilian newspapers and remains her most embarrassing moment. She was able to put her rocky start behind her and returned to the runway to model collections for A-list designers such as Bill Blass, Balenciaga, Bottega Veneta, Oscar de la Renta, Valentino, Jil Sander, Chanel, Michael Kors, Ralph Lauren and Stella McCartney, among many others. Goulart has also modeled for H&M, Express, Neiman Marcus, Missoni and Dsquared.