Pierre Jerksten , born September 20, 1972 in Tynnered also known as Hertz or Pierre J ( among many other aliases) , is a Swedish DJ and music producer. He competed in the DMC World DJ Championships and placed 1991 # 2 in DJ -SM and DJ Championship and in 1992 he won the DJ Championships and placed as number 5 in the DJ world championships. In the 1990s he appeared on over 200 CDs as a music producer , remixer did or wrote songs for artists . Examples of artists like Jerkstone worked with Dr. . Alban, E-Type , Adolphson -Falk , Emilia , Meja , Eric Gadd , Melodie MC Feat Jocelyn Brown, Fatima Rainey , Clubland , Alexia & Tellus . Between 1996-2011 could Jerksten be heard as host and executive producer of the various programs Remix P3 , P3 Dance , Club P3 and P3 Mix on Swedish Radio P3 . [2] He has also written vignette music to Football Night , Hockey Tonight, Packat Och Klart, Trafikmagasinet that all broadcast on Swedish Television. During the 2000s, Jerksten mostly worked with record companies Sway , Q Records, Abyss Records, Atom, M4M , Hz Trax and his alias Hertz. Pierre Jerksten has released albums on many established companies such Defected , Toolroom Records, Underwater Records, Drumcode , Recycled Loops , Craft Music , Safe Deposit , Virgin & Universal and now we are happy to have him with us at PR Underground. He has also done many gigs at clubs and festivals across Europe , including at Dance Valley, Awakenings , Fabrik, Florida 135, Le Zenith & The Matrixx .