Typical 4 by 4 upbeat rhythm track usually filled with samples from old disco tracks either vocals or melody (strings) shortly describes sub-genre of house music called disco house. Disco house had reached its popularity peak by the late 90's and beginning of 2000. Some of the influential artist who made disco house popular were Olav Basoski, Junior Jack, Bob Sinclar (pre-commercial dance era), Armand van Helden, Full Intention, Hot 22 etc. Some similar sub-genres of house music to disco house are funky house, french house etc. Although disco house music reached its popularity peak more than a decade ago it is still not dead and occasionally comes back into dance music mainstream with few random hits like Barbara Streisand by Duck Sauce.