"Goin' In" is a song recorded by American singer Jennifer Lopez. The song features American rappers Flo Rida and Lil Jon, although the latter is uncredited for his part in the song.

It was co-written by Joseph Angel, Tramar Dillard, David Quiñones, Sebastian Kole, Michael Warren and Jamahl "GoonRock" Listenbee, who also produced the song.

It is featured on the soundtrack of the dance film Step Up: Revolution (2012) and on her first greatest hits album Dance Again... the Hits (2012). This is also the third song from the Step Up series to feature Flo Rida, after "Low" from Step Up 2: The Streets (2008) and "Club Can't Handle Me" from Step Up 3D (2010).

Lopez debuted "Goin' In" on the season final of American Idol May 23, 2012, as part of a medley with "Follow the Leader". 

The music video was filmed in June 2012. It was directed by Ace Norton. In the music video, Lopez had lips which were covered in crystals, and each gem was individually glued onto Lopez’s lips by her makeup artist, Mary Phillips.

Footage from Step Up: Revolution, and appearances from Lil Jon and Flo Rida were incorporated too, including some of the film's cast. The producer GoonRock makes a cameo around one minute into the video.