Jay-Z was accused of stabbing record executive Lance "Un" Riviera for what he perceived was Riviera's bootlegging of Vol. 3... Life and Times of S. Carter . The stabbing allegedly occurred at the record release party for Q-Tip 's debut solo album Amplified at the Kit Kat Klub, a now defunct night club in Times Square , New York City , on December 9 , 1999 . Jay-Z's associates at the party were accused of causing a commotion within the club, which Jay-Z allegedly used as cover when he supposedly stabbed Riviera in the stomach with a five-inch blade. 
Jay-Z initially denied the incident and pleaded not guilty when a grand jury returned the indictment. Jay-Z and his lawyers contended he was nowhere around Riviera during the incident and they had witnesses and videotape evidence from the club that showed Jay-Z's whereabouts during the disturbance. Nevertheless, he later pleaded guilty to a misdemeanor charge that resulted in a sentence of three years probation. The New York Post reported that Jay-Z had bought out Riviera for $600,000 to cease his cooperation with prosecutors, and without the cooperation of the victim, prosecutors had to cut a plea deal that would not interfere with Jay-Z's touring plans. Riviera also dropped a civil suit, where he asked for $40 million. 
Jay-Z makes reference to the trial and incident on his songs "Izzo (H.O.V.A.)", off The Blueprint , "Threat," off The Black Album and "Dear Summer", which was included in Memphis Bleek's 2005 release 534 .
Former Roc-A-Fella labelmate-turned-rival Cam'ron has since claimed on his song "You Gotta Love It" that Jay-Z had actually "stabbed Un over Charli Baltimore ." Nas said in his diss song targeted at Jay-Z, " Ether ," that "[Jay-Z's] man stabbed 'Un' and [Jay-Z] took the blame."
Jay-Z was featured on Beyoncé's hit single "Crazy In Love." He made yet another appearance on Beyoncé's 2006 hits, "Deja Vu" and "Upgrade U." The couple has never publicly discussed their relationship, but has reportedly been together for almost four years. Beyoncé has stated that she believes that not publicly discussing their relationship has helped them. Jay-Z has said in a People Magazine article that "We don't play with our relationship".
Jay-Z did remark during a goodbye party for departing Def Jam head Lyor Cohen in 2004 that he and Beyoncé will "marry very soon."  However, Beyoncé denied the claims made on the December 10 , 2006 airing of tabloid television show The Insider on which they claimed that Jay-Z and Beyoncé are getting married soon.
In May 2006, there were reports that Jay-Z and singer Rihanna had a more than business-like relationship after the two partied together privately at Jay-Z's club in New York City. Similarly, it was reported that Beyoncé and Jay-Z had a disagreement after he received a fifteen-minute telephone call from Rihanna while attending a New Jersey Nets game. Publicists for Jay-Z denied the claims of a love affair between the two. There were no further reports afterwards. 
Jay-Z and Beyoncé were listed as a Power Couple on Time Magazine's 100's Most Influential People of 2006.
It can be noticed that Jay-Z and Beyoncé were fond of each other before they had an "official" relationship. In 1998, Jay-Z was featured on a song by producer Timbaland , titled "Lobster and Scrimp," which references Destiny's Child 's first single " No, No, No " ("She said, 'You're stressin me now,'/Said, 'No No No,' then, 'Yea yea yea' like she Destiny's Child"). In 1999, Jay-Z directed rapper Amil 's "I Got That", a video in which Beyoncé was featured. In 2001, Jay-Z was featured on a song by Missy Elliott , titled "One Minute Man (Remix)," in which he raps "Get your 'Independent' ass out of here - QUESTION?" Which is an obvious reference to the Destiny's Child 2000 single " Independent Women Part I ." Destiny's Child was also seen in his 2001 video "H To The Izzo" lip-synching some of his raps.
Principal for a Day
In 2002 Cass Technical High School in Detroit , Michigan , and Kashmere High School in Houston , Texas hosted Jay-Z as "principal for a day"  .