HIGH-FIVE U.S. Air Force Staff Sgt. Erin McPherson high-fives children at Knott's Berry Farm, Nov. 15, 2008, in Los Angeles. McPherson is a vocalist of the Air National Guard Band of The Southwest. The band is performing during Air Force Week Los Angeles, which is an event designed to educate the local population about the Air Force's capabilities and missions through various activities and exhibitions all over the Los Angeles area. SHARE: Download: Full Size (0.07 MB) Credit: VIRIN: 151911-G-OIE97-894.jpg Photo Gallery