Songfacts®:

• Pitbull's second single from his fifth studio album, Planet Pit, features production from Dutch dance music producer and DJ Afrojack, while Pitbull spits lyrics directed to his lover.
• R&B singer Ne-Yo and model/actress Nayer provide the hook on this electro-house number. Nayer is a frequent contributor to Pitbull's tunes, having previously provided vocals for the Cuban-American rapper's Armando track "Vida 23." You may also spot her in the video for "I Know You Want Me" wearing a police uniform.
• Six weeks after he topped the UK singles chart alongside Jennifer Lopez on On The Floor, Pitbull had his first British #1 single as a lead artist with this song.
• The song's music video was directed by David Rousseau and features an appearance by Adrienne Bailon. The singer and actress was previously a member of girl group 3LW and the Disney created The Cheetah Girls.
• The song was the first Hot 100 #1 for Pitbull, and also for AfroJack and Nayer (Ne-Yo previously topped the chart with his debut entry, "So Sick" in 2006).
  
  Pitbull's debut Hot 100 was "Culo" in the week of April 24, 2004. His wait of seven years, two months and two weeks for his first #1 was the longest for a male solo artist since Lil Wayne hung around for eight years, nine months and three weeks between his first chart visit in 1999 and "Lollipop" in 2008.
• Pitbull's first choice for the featured spot on this song was Shakira - he previously collaborated on the Colombian superstar's track "Rabiosa."
  
  "I tried to get Shakira on the record but, due to some personal things she was going through, she couldn't jump on the record," he admitted.
• The actress Lindsay Lohan was often in the news around this time for various crimes and misdeeds, like stealing a necklace from a jewelry store. In this song, Pitbull takes a shot at her with the line, "I got it locked up like Lindsay Lohan."
  
  Lohan didn't take it well; she slapped a lawsuit on the Cuban rapper, claiming, "The lyrics, by virtue of its wide appeal, condemnation, excoriation, disparaging or defamatory statements by the defendants about the plaintiff are destined to do irreparable harm."
  
  Pitbull claimed that the lyric was not about Lohan's stint in jail, but conveyed the "positive message" that "if you got it locked up, it means you run the show." Not sure we're buying that.
  
  United States District Judge Denis Hurley certainly didn't buy the lawsuit. ruling that because the song neither violated Lohan's right to privacy, or exploited her name to sell records, the actress's suit had no merit.
• Pitbull's real name is Armando Christian Perez. So why his canine moniker? He explained: "They bite to lock. The dog is too stupid to lose. And they're outlawed in Dade County. They're basically everything that I am. It's been a constant fight."
• Afrojack first came up with the tune when he was in the shower. He headed right to the studio without putting on any clothes to start programming the song and begin writing its lyrics.
  
  "I think I was in the studio for like five hours with the towel around me, and I made like the whole instrumental of the track," the Dutch producer recalled to Billboard.
• A stripped-back string version of the song plays at the end of the fourth episode of the third series of Bridgerton. It soundtracks a make-out carriage scene involving Luke Newton's Colin Bridgerton and Nicola Coughlan's Penelope Featherington.
  
  "I think everyone was a little bit shocked that they were so in love with this Pitbull song cover for this sequence, of all things," Bridgerton music supervisor, Justin Kamps told Netflix's Tudum. "But the song is amazing, and it has this great build to it, and that's what the scene really needed. It needed this anticipation and then an explosion into the main chorus of the song as we see what's happening on-screen."