Okay, this is very cool. The embassy didn't just help sponsor the event, they actually gave their sports field for hosting the event (which gives the event extra gravitas). From US Embassy Laos:
With support from the U.S. Embassy, Laos held its first-ever Lesbian, Gay, Bisexual, and Transgender (LGBT) Pride event on June 25 in Vientiane. The event, called “Proud to be Us!”, was produced by a group of young Lao LGBT activists and featured music, dance, skits, and dramas exploring issues faced by LGBT people in Laos today, such as discrimination, gender roles, and sexual health.
More than 100 people attended the event, which took place on the sports field of the U.S. Embassy. The guests of honor were U.S. Ambassador Karen Stewart and Dr. Bounpheng Philavong, Director of the Center for HIV/AIDS/STI (CHAS) at the Lao Ministry of Health. During their remarks, both Dr. Bounpheng and Ambassador Stewart congratulated the event organizers for taking an important first step to achieving full acceptance of LGBT people in Lao society.