Light It Up may refer to:

• Light It Up (film), a 1999 film starring Usher
  • Light It Up (soundtrack), the soundtrack to the 1999 drama film, Light It Up
• Light It Up (Rev Theory album), 2008
  • "Light It Up" (Rev Theory song)
• "Light It Up", a 2010 single by Blood Red Shoes from their album Fire like This
• "Light It Up" (Stan Walker song), 2011
• "Light It Up", a 2013 song by OneRepublic from their album Native
• "Light It Up", a 2015 song by XO-IQ, featured in the TV series Make It Pop
• "Light It Up", a 2015 song by Badd Dimes and We Are Loud! featuring Sonny Wilson released after an earlier collaboration on "Booyah"
• "Light It Up" (Major Lazer song), 2015
• "Light It Up", a 2017 song by Neffex
• "Light It Up" (Luke Bryan song), 2017
• "Light It Up" (Marshmello, Tyga and Chris Brown song), 2019
• "Light It Up", song by Migos and Pop Smoke from Culture III, 2021
• Light It Up (Casey Barnes album), 2022