Ubon Ratchathani Province, with its world-famous Candle Festival, Yasothon's provincial capital has elaborately staged its now one of three famous Rocket Festival in Thailand ( Yasothon, Suwannaphume, and Phanom Prai both are locate in Roi Et province ) annually over the Friday, Saturday, and Sunday weekend that falls in the middle of May. Raw Friday (, Wan Sook Dip) features all-night performances of Mor Lam Sing (Thai–Isan: หมอลำซิ่ง), which continue intermittently into the early hours of Monday. Mor Lam Sing is a type of morlam that is very popular among the local Isan-Lao population. The performance goes on all night and the locals have great fun. Outsiders have a hard time understanding the humor, which is often rather bawdy. Saturday brings on the competitions for Hae Bangfai Ko (). "Hàe" are street parades or demonstrations usually featuring traditional dance and accompanying musicians, typically with khaen (), Gongs, Lao-Isan Klong Yao (), long drum), and an electric guitar, powered by an inverter and car batteries in a handcart that also mounts horn loudspeakers. Bangfai Ko are richly decorated rockets mounted on traditional but highly decorated oxcarts, or modern floats. Most but not all bold Bangfai Ko are for show and not actually capable of flight. Many sport the heads of Nāgas; if equipped with water pumps and swivels, they are actually capable of spitting on spectators. The principal theme of any Hae Bangfai is the Phadaeng and Nang Ai legend (below), so many floats (or highly decorated oxcarts) also depict the couple and their retinue. Other modern themes present as well, as suggested by Keyes (ibid.) Participating groups compete for prizes within their categories. Hàe typically end in a wat, where dancers and accompanying musicians may further compete in traditional folk dance. All groups prominently display the names of their major sponsors. Recalling the fertility rite origins of the festival, parade ornaments and floats often sport phallic symbols and imagery. Amid the festive atmosphere, dirty humour is widespread. Festivities also include cross-dressing, both cross-sex and cross-generational, and great quantities of alcohol. Perhaps the most popular beverage, both because it is cheaper than beer and has a higher, 40-percent alcohol content, is a neutral grain spirit called Sura (), but more generally known as Lao Whiskey (, Lao lao) in Laos and Lao Khao (, white alcohol) in Thailand. Sato (), a brewed rice beverage similar to Japanese sake, may also be