Scottish regiments wear kilts or tartan trews, and some wear tartan waistcoats as well. Scottish did not wear trousers, favouring the kilt, and Scottish Lowland regiments adopted tartan trews. In Highland dancing, every dancer wears a kilt, or tartan trews. Tartan plus-fours are traditional golfing attire that are based on the traditional trews. However, tartan trews can be worn by women in the United States. For Lowland regiments in trews, spats were visible only over the brogue shoes. USS headlined the event, alongside Choclair, The Salads, Die Mannequin, The Trews and Moneen. They changed their name to "Trouser" and eventually "The Trews". Past performers at the dances have included&colon; The Trews, Trooper, Thornley and Kim Mitchell. Historically trews were part of the Highland cultural tradition, not Lowland. In April 2014 the band released its 5th full-length studio album eponymously titled "The Trews". The years playing with the Trews have been best years of my life. The Trews performed the National Anthem. The Trews returned on 12 October 2016. The Trews first became widely known after opening for Big Sugar at the 2003 festival.