Anime Expo, abbreviated AX, is an anime convention that usually takes place on the July 4 weekend for four days each year in Southern California. The convention tries to include July 4 in its dates, except on the years when July 4 falls on a Wednesday. Anime Expo is hosted by the non-profit Society for the Promotion of Japanese Animation (SPJA). SPJA has also held Anime Expo conventions in New York and Tokyo, which took place in 2002 and 2004 respectively. Anime Expo has frequently collaborated with the anime industry, and as the convention has grown, so has the visibility of Anime Expo's industry sponsors as evidenced by their towering presence throughout the convention site.
Many of the attendees cosplay while attending the convention, and popular events (in addition to guest and industry panels) include the masquerade, karaoke contest, anime music video contest, and "AX Idol" contest. Anime Expo is a 24-hour convention, offering late-night dances, all night video and gaming rooms, and open-mic Karaoke in the nighttime hours.
Anime Expo began as an anime and manga convention in Northern California. Many of its original staff came from Anime Con, an anime convention held in San Jose, California in 1991, and later absorbed by the SPJA in 1992. In 1994, Anime Expo made a strategic relocation to Southern California and has resided there since.