| Jennifer Lopez | Primary Artist |
| Josie Aiello | Background Vocals |
| Tom Barney | Bass |
| Larry Gold | Conductor |
| Eric Kupper | Keyboards |
| Chieli Minucci | Guitar |
| Rita Quintero | Background Vocals |
| Wendy Peterson | Background Vocals |
| Kuk Harrell | Background Vocals |
| Lil Jon | Vocals |
| Richie Jones | Percussion, Drums |
| Shawnyette Harrell | Background Vocals |
| Jennifer Karr | Background Vocals |
| Jeanette Olsson | Background Vocals |
| Ashanti Douglas | Background Vocals |
| Natasha Ramos | Background Vocals |
| Marty Osterer | Bass |
| B-Money | scratching |
| Maria Christiansen | Background Vocals |
| Jane Barrett | Background Vocals |
| Alessandro Giulini | Accordion |
| Justin Angel | Background Vocals |
| Margret Dorn | Background Vocals |
| James Brown | Composer |
| Rick James | Composer |
| Prince Charles | Engineer |
| Josie Aiello | Contributor |
| Samuel Barnes | Composer |
| Leonard Caston | Composer |
| Sean "Puffy" Combs | Composer, Producer |
| Michael Garvin | Composer |
| Larry Gold | Arranger |
| Greg Lawson | Arranger, Composer |
| Michael Oliver | Composer |
| Bruce Swedien | Engineer |
| Dan Hetzel | Engineer |
| Rodney Jerkins | Composer, Producer |
| Enrique Iglesias | Composer |
| Frank Wilson | Composer |
| Kuk Harrell | Producer, Vocal Arrangements, Vocal Engineer, Vocal Producer, Vocal Editing |
| Julian Peploe | Art Direction |
| L.E.S. | Composer |
| Poke & Tone | Producer |
| Brian Springer | Engineer |
| Irv Gotti | Producer |
| Usher Raymond | Composer |
| Dave Scheuer | Arranger, Producer, Engineer |
| Thomas R. Yezzi | Engineer |
| Steve Standard | Composer |
| Phil Temple | Composer |
| Stargate | Producer |
| Richie Jones | Arranger, Programming, Producer, Remixing |
| David Swope | Engineer |
| Anita Poree | Composer |
| Irving Lorenzo | Composer |
| Scott Sterling | Composer |
| David Styles | Composer |
| Jeffrey Atkins | Composer |
| Joe Cartagena | Composer |
| LaShawn Daniels | Composer |
| Troy Oliver | Composer, Producer, drum programming |
| Jennifer Lopez | Composer, Executive Producer |
| Jim Annunziato | Vocal Engineer |
| Robb Williams | Engineer |
| Jeremy Monroe | Composer |
| Rich Harrison | Composer, Producer |
| Bilal | Composer |
| Fred "Uncle Freddie" Jerkins III | Composer |
| Danny D. | Management |
| Damon Sharpe | Composer |
| Caddillac Tah | Composer |
| Jason Phillips | Composer |
| Ashanti Douglas | Composer |
| Milwaukee Buck | Engineer |
| Pitbull | Composer |
| Peter Wade Keusch | Engineer |
| Bill Makina | Programming |
| Ryan Tedder | Composer, Producer, Engineer |
| Miles Walker | Engineer |
| Georgette Franklin | Composer |
| Amille D. Harris | Composer |
| Al Burna | Engineer, Vocal Engineer |
| Tim Blacksmith | Management |
| Mr. Deyo | Composer |
| RedOne | Composer, Programming, Producer, Engineer, Vocal Arrangements, Vocal Producer, Instrumentation, Vocal Editing |
| Damien Lewis | Engineer |
| Josh Gudwin | Engineer, Vocal Engineer |
| Tor Erik Hermansen | Instrumentation |
| Ric Wake | Arranger, Producer |
| T. Dillard | Composer |
| Dave Kutch | Mastering |
| T.E. Hermansen | Composer |
| M. Eriksen | Composer |
| Franklyn Grant | Engineer |
| C. Tillman | Composer |
| G. Hermosa | Composer |
| Lawrence Parker | Composer |
| Christopher Rios | Composer |
| Cory Rooney | Composer, Producer, Engineer, Executive Producer, Remixing |
| Jean Claude Olivier | Composer |
| Chris "Tek" O'Ryan | Engineer, Vocal Editing |
| Julio Reyes | Engineer |
| Jose Fernando | Composer |
| Michael "Banger" Cadahia | Vocal Engineer |
| Maria Christiansen | Composer |
| Teddy Sky | Contributor |
| AJ Junior | Composer |
| Trevor Muzzy | Engineer, Vocal Editing |
| Jimmy Thörnfeldt | Contributor |
| Goonrock | Producer |
| John Jackson | Composer |
| Mikkel S. Eriksen | Engineer, Instrumentation |
| The Chef | Composer |
| Arbex Miro | Composer |
| Scotty Beatz | Engineer |
Editorial Reviews
All Music Guide - Stephen Thomas Erlewine
Jennifer Lopez departed Epic after 2007's Brave but still owed her old label a hits collection, and Dance Again...The Hits arrived on Epic just weeks after Lopez announced her departure from American Idol. Lopez's two years on the singing competition boosted her profile and popularity, elevating Dance Again to something more than mere contract fulfillment. Two new recordings, "Dance Again" and "Goin' In," tracks that feature Pitbull and Flo Rida, respectively, are designed for the dancefloors of 2012, and feel especially steely when paired with the fizzy, glitzy turn-of-the-millennium hits that turned Lopez into a pop star. Dance Again doesn't include all of her...