"IDGAFOS" (which stands for "I Don't Give a Fuck or Shit") is a moombahcore song by American record producer Dillon Francis. It was released as his debut single on October 18, 2011 through Mad Decent. It contains a heavily distorted sample of Adam Levine's vocals from "Stereo Hearts" by Gym Class Heroes (which Francis had previously released an official remix for). The song marked the start of Francis' breakthrough, topping Hype Machine's "Most Popular Tracks" chart.