a-ha is a synthpop/rock band from Norway, formed in 1982. The group initially rose to fame during the 1980s and has continued to be successful (mostly in Europe) through today. The band is the best-selling Norwegian music artist in history and the first from that country to score a No. 1 hit in the U.S. with their mega single, "Take on Me" in 1985. On 15 October 2009, the band announced their split after a planned worldwide tour in 2010. On 19 October the tour's name was announced as Ending On A High Note.