There are at least two artists called Aleks:

1) Aleksey (Aleks) Weyman is a HipHop/Rap artist based in Seattle, WA.

2) Aleksandar Danilo Manojlović (Serbian: Александар Данило Манојловић) better known by the artist name Aleks, born August 18, 1982 in Stockholm, is a Swedish soul singer and rapper of Montenegrin and Finnish origin. Read more on Last.fm. User-contributed text is available under the Creative Commons By-SA License; additional terms may apply.