There is no definitive date for the start of the "celebrity sex tape" trend, though the recent revelations about a Jimi Hendrix Sex Tape would certainly be a contender, but it was the release of sex tapes from Pamela Anderson and Paris Hilton that made the phenomenon of famous people recording themselves engaging in sex acts into a national obsession.

The release of sex tapes has become so frequent, and such a rite of passage, some celebrities go ahead and take the initiative of releasing their own before bootleg copies even have a chance to hit the Internet. (As in the case of Dustin Diamond, better known as "Screech," who hoped that self-releasing a sex tape would boost his career prospects). 2009 was a record-breaking year of sex tapes being released both by the participants and by the media hearing of the tapes existencehttp://x17online.com/celebrities/shauna_sand/shauna_sand_sex_tape_will_be_released-10262009.php.

There are cases where the people that are involved are paid to keep the video to themselves and this seems to be the case in the Tiger Wood’s Phoenix escapade. The women involved in that sex tape are being paid to keep quiet about the video, but they have been named and photographed so the video or pictures could still be released, according to the New York Daily News.http://www.nydailynews.com/gossip/tigerwoods/2010/02/14/2010-02-14_tiger_woods_allegedly_had_threesome_with_two_phoenix_women_who_were_paid_to_stay.html Then tere are random sex tape rumors. One such rumor was the Chris Brown and Rihanna video that has yet to see the light of day.

• Rob Lowe
  • In 1988, Lowe filmed himself engaging in sex with two women - one of them only 16 - while attending the 1988 Democratic Convention in Atlanta, Georgia. He pioneered the tactic of entering rehab after a sex tape revelation, which has only become more popular with time.

• Tonya Harding
  • The honeymoon video of Tonya Harding and Jeff Gillooly (her conspirator in all that Nancy Kerrigan unpleasantness) became so widespread and popular on the Internet, the figure skater and her husband went ahead and released it themselves through Penthouse home video. (Trivia: the "wedding gown" worn by Harding in the video is a Halloween costume, not her real gown.)

• Pamela Anderson
  • Pam's featured on two blockbuster sex tapes - one with ex-husband and Poison frontman Bret Michaels and the other with ex-husband and Motley Crue frontman Tommy Lee.

• Paris Hilton
  • 1 Night in Paris, recording a night of passion between Hilton and ex-boyfriend Rick Salomon, has become the most infamous of all sex tapes, and made the socialite one of the most infamous, obsessed-over celebrities in America. Though the original leaked segments of the video were all in night vision, the subsequent video release included full color footage. Hilton receives royalties for the DVD.

• Colin Farrell
  • A 13-minute video of the film star cavorting with Playboy Playmate Nicole Narian leaked on to the Internet in January of 2006, despite the actor's legal efforts to block distribution.

• Kim Kardashian
  • Paris Hilton's friend and fellow socialite made a sex tape featuring herself and rapper ex-boyfriend Ray J. The tape was going to be released by porn company Vivid Entertainment before Kardashian sued the company, eventually receiving a $5 million settlement. As it did with her blonde friend, the tape's release made Kardashian a considerably larger celebrity than she had been before, eventually landing her the reality series Keeping Up with the Kardashians.

• Chris Brown & Rihanna
  • A rumor of an existing Chris Brown Rihanna Sex Tape rumor was printed in Star Magazine on March 19, 2009. Neither parties' representation was available for comment. The article suggests that the couple made more than one tape together, but does not say if the tapes were made before or after the alleged assault.http://www.rightcelebrity.com/?p=5679 A fake version of the tape was 'leaked' early June 2009 http://hollywooddame.com/2009/06/15/rihanna-and-chris-brown-sex-tape-hit%E2%80%99s-the-net/

• Namrata Shrestha Sex Tape
  • A sex tape of Namrata Shrestha started circulating online in September of 2009 that allegedly featured Nepali actress and model Namrata Shrestha having sex with a Nepal DJ, DJ Tantrik, who is married to another woman.

• Carmen Electra Sex Tape
  • A sex tape of Carmen Electra was 'leaked' to website NucleonForce.com on november 18, 2009. In the footage, Carmen dances seductively with little more than her underwear.

• Miss Universe Sex Tape
  • In Novembe 2009 a sex tape surfaced of a Miss Universe contestant engaged in a three-way with her boyfriend and another woman. The Miss Universe sex tape was originally thought to be of Miss Universe Trinidad and Tobago 2008 Anya Ayoung-Chee and Miss Universe Japan 2008, Hiroko Mima, however, Miss Trinidad and Tobago's boyfriend says the second woman is not Miss Japan

• 2008: Edison Chen Sex Photos

• 2008: Lauren Conrad Sex Tape

• 2008: Jeremy jackson sex tape

• 2009: Shauna Sand's Sex Tape.http://x17online.com/celebrities/shauna_sand/shauna_sand_sex_tape_will_be_released-10262009.php

• 2009: Kelis sex tape

• 2009: Chris Brown & Rihanna Sex Tapes

• 2009: Miss Universe Sex Tape

• 2009: Carmen Electra Sex Tape

• 2009: Namrata Shrestha Sex Tape

• 2010: Tiger Woods sex Tapes being offered to Vivid entertainment.http://www.nydailynews.com/gossip/2010/01/05/2010-01-05_tiger_woods_sex_tape_being_shopped_to_porn_company_vivid_entertainment.html

• 1988: Rob Lowe Sex Tape Controversy

• 1994: Tonya Harding Sex Tape Scandal

• 1998:Tommy Lee & Pam Anderson Sex Tape

• 1998: Kelsey Grammer Sex Tape

• 1998: Janine & Vince Neil: Hardcore & Uncensored

• 2003: Paris Hilton Sex Tape

• 2004: Gena Lee Nolin Sex Tape

• 2004: Survivor Star Jenna Lewis Sex Tape Surfaces

• 2004: Chyna's Sex Tape

• 2005: O.J. Simpson Sex Tape

• 2005: Colin Farrell Sex Tape

• 2006: Dustin Diamond Screech from Saved By the Bell Sex Tape

• 2006: Carolyn Murphy Sex Tape

• 2006: Rock, Strapp Sex Tape

• 2007: Meg White Sex Tape

• 2007: Kardashian Sues Over Sex Tape Release

• 2007: Simon RexSex Tape

• 2007: Keeley Hazell Sex Tape

• 2005: Pam Anderson Bret Michaels Sex Tape