"IDGAFOS" (an acronym for "I Don't Give a Fuck or Shit")[1][2] is the debut single by American record producer Dillon Francis, released 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.
The first, titled "IDGAFOS 2.0", is an updated "VIP" version which featured most of the same elements as the original with an edited intro and outro.
It was released as a free download through Facebook on February 15, 2012 and later published to his SoundCloud page on March 7, 2012.