There are at least two artists called ADS: 1st:
ADS was an punk/goth/post-punk band from Copenhagen, Denmark. They are for example featured in the documentary Totem on the Copenhagen punk underground in the early 80s. 2nd:
ADS is an artist/producer from Sheffield UK. Also known as Adsorb he produces many different styles but has a real flavour for Breaks. Alongside his production and DJ work he manages an award winning residential, recording studio called 'Kenwood Studios'.

Read more about Ads on Last.fm.