P.S. I Hope You're Happy

"P.S. I Hope You're Happy"
Single by the Chainsmokers featuring Blink-182
from the album World War Joy
Released	December 6, 2019 (2019-12-06)
Genre	Pop rock future bass
Length	3:45
Label	Disruptor Columbia
Songwriter(s)	Alex Pall Andrew Taggart Emily Warren Mark Hoppus Travis Barker
Producer(s)	The Chainsmokers Travis Barker
The Chainsmokers singles chronology
"See the Way" (2019) "P.S. I Hope You're Happy" (2019) "High" (2022)
Blink-182 singles chronology
"Not Another Christmas Song" (2019) "P.S. I Hope You're Happy" (2019) "Quarantine" (2020)

"P.S. I Hope You're Happy" is a song by American electronic music duo the Chainsmokers featuring American rock band Blink-182, released on December 6, 2019, as the tenth and final single from the duo's third studio album, World War Joy, which was released on the same day.