It was definitely "Feeling This." Unless it was actually "I Miss You."
One of the lyrics from "Closer," the smash collaboration between the Chainsmokers and Halsey that fans have really latched onto comes in the Halsey-sung second verse: "Stay and play that Blink-182 song/ That we beat to death in Tuscon, okay." The couplet has inspired much speculation about which specific Blink song it might be referring to -- a matter addressed by Chainsmoker Andrew Taggart on the song's Genius page in August, where he claimed "We were listening to Blink-182’s 'I Miss You' and had just started playing it in our sets when we wrote this song."
On Monday night (Sept. 19), however, Taggart took to Twitter to clarify which Blink song really inspired the lyric: "Feeling This," the lead single from the band's self-titled 2003 album.