There are multiple artists with this name:
1) Ad Hoc are five musicians from Poland who are playing melodic rock drawing on bands such as Red Hot Chili Peppers, Guns N 'Roses, Coma or Hey. But they try not to close in one diagram, thus it is difficult to pigeonhole them. Since 2009 the band played over 30 concerts, created over 19 songs and won two prizes in the Battle of Bands ("Bitwa Kapel) in 2009. They appeared in the Radio Katowice and in Radio Egida they won the first place on 32 chart with single song "Tak To '.