More than one artist exists with this name:
1) Seventeen is a pop group with a close fan following in eastern Asia. The band is perhaps best known for the 2008 tune "Selalu Mengalah", which came from Seventeen's third album (titled 'Lelaki Hebat'). The band formed in Yogyakarta, Indonesia on January 17, 1999; the name came from the fact that all three initial members were of that age when they started. The group's latest album, released in 2011, is called 'Dunia Yang Indah'.
2) Seventeen was a British power pop/new wave group that existed from around 1978 to 1983. It was made up of Mike Peters, Nigel Twist, Eddie McDonald, and Dave Sharp. They released a variety of poppy tunes such as "Don't Let Go" and toured the U.K. constantly. The guys went on to adapt their style to be darker, harder-edged, and more punk-influenced, and they reformed as the Alarm, which had more commercial success. Their songs since have had a cult following.
3) Seventeen is the name of a thirteen member Korean group that made its recording debut in May 2015 with the track "Adore U"; its members are S.Coups, Jeonghan, Joshua, Jun, Hoshi, Wonwoo, Woozi, DK, Mingyu, The8, Seungkwan, Vernon and Dino. The pop group was formed by Pledis Entertainment, and the guys have been growing their fan-base since the start of their live-stream show, known as the 'Seventeen Project'. The first season of that program aired in 2012. Their EP, titled '17 Carat', has received international praise, with Jeff Benjamin of Billboard.com remarking that their first single "blends funky pop-rock and '90s hip-hop vibes".