Originating in Finland in 2003 with 7 countries, the Karaoke World Championships are an international karaoke competition, featuring approximately 30 countries worldwide. 
National trials are conducted in each participating country every year with the winners competing in the international finals for the titles of male & female Karaoke World Champions (2003-2017). The 2016 competition introduced the Duet category and in 2018 gender categories were removed. Extra categories in KWC have included KWC Juniors (2017) and Champions Round (2018). Finland was the host country for the international finals from 2003 until 2005. In 2006, the finals were held aboard the M/S Galaxy whilst cruising the Baltic Sea from Helsinki to Estonia return. Thailand was the first country to host the finals outside of Finland in September, 2007. In 2008, the event returned to Finland, and was twice consecutively in Lahti Hall.
In December 2005, the top 5 male & female champions of that year were invited to perform for the Princess of Thailand in Bangkok, Thailand in the 'KWC Lights Up The Night' tsunami fundraising concert. The black tie concert was televised throughout Thailand and raised money for the 2004 tsunami victims.
On April 6, 2007, Finnish National Karaoke World Champion 2005 & 3rd place Karaoke World Champion 2005, Ari Koivunen, Idols, the Finnish version of the UK hit, Pop Idol.
The 2010 World Championships took place in Moscow, Russia between 23 September and 25 September at Forum Center.
The 2011 World Championships took place in Killarney, Ireland between 8 September and 10 September at INEC, Gleneagle.
The 2012 World Championships took place in Lappeeranta, Finland between 28 November and 1 December at Holiday Club Saimaa
The 2013 World Championships took place in Lappeeranta, Finland between 21 November and 23 November at Holiday Club Saimaa
The 2014 World Championships took place in Stockholm, Sweden between 13 November and 15 November at Solidaritet Arena
The 2015 World Championships took place in Singapore between 20 November and 22 November at the Boutique on Orchard Road with a record number of 31 countries participating.
The 2016 World Championships took place in Vancouver, Canada between 1 November and 6 November at Edgewater Casino
The 2017 World Championships took place in Helsinki, Finland between 14 November and 18 November at Telakka Pavilion.
The 2018 World Championships took place in Helsinki, Finland between 19 December and 21 December at Apollo.
The 2019 World Championships took place in Tokyo, Japan between 27 November and 29 November at Kanda Myoujin Shrine Hall.
The 2020 World Championships will be an online competition  due to the pandemic and will be held between 2 November and 7 November.