"Infinity", also known as "Infinity (1990's... Time for the Guru)", is a song by British acid house musician Guru Josh. It was originally released in December 1989 as the lead single from his debut album of the same name. The song was re-released in 2008 in a remixed version called "Infinity 2008" and enjoyed renewed success in many countries.

The song was first released in 1989 from the album of the same name. It achieved success in many European countries, such as Spain, Germany, UK and Austria in 1989 and 1990, peaking at #5 in the UK Singles Chart in March 1990, and has been featured on numerous dance compilations from 1990 to the present day.

DJ Taucher released a heavier techno version of the song in 1995. This version is not to be found on any of his studio albums, but is included on the compilation albums Dance Now! 10 and Maxi Dance Sensation 18.

In 2007, the 'Guru Josh Project' was formed, and included Guru Josh, Snakebyte and the man that inspired the project, Darren Bailie. The 'Guru Josh Project's' adaptation of "Infinity" became another hit in 2008 and 2009 as a remixed version by DJ Klaas, under the title "Infinity 2008". The release enjoyed much success, reaching number one in France, Belgium, Denmark, Poland, Hungary and on the Eurochart Hot 100, and reached number two on the German dance chart. It peaked at number 3 in the UK Singles Chart. The remix was written by Paul Walden and produced by Klaas Gerling and Jerome Isma-Ae. It was published by EMI Music.

In April 2009, the track was picked up by Ultra Records in the United States and debuted on the Billboard Hot Dance Airplay chart, where it reached the number one spot, dethroning Lady Gaga's "Poker Face", in May 2009.

In France, the song was included on the double compilation NRJ Music Awards 2009. The video features German playmate Janina Wissler (Playboy's Girl of September 2005) and Josh.

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