SURPRISE GUEST First Lady Michelle Obama surprises Navy veteran Barbara Marshall on the set of "Extreme Makeover: Home Edition" in Fayetteville, N.C., July 21, 2011. The first lady appeared on the show to promote her Joining Forces military support campaign and to pay tribute to Marshall, who has dedicated her time and resources to helping homeless female veterans. SHARE IMAGE: Download Image: Full Size (0.07 MB) Photo By: VIRIN: 289865-J-FKG99-334.jpg Photo Gallery