What year was this debut single by this rapper who also released "Congratulations" released?
2015
Title: Congratulations (Post Malone song)
Passage: "Congratulations" is a song by American rapper Post Malone.  It was released on November 4, 2016, by Republic Records as the first promotional single from his debut studio album, "Stoney".  It was then released on January 31, 2017, as the fifth single from "Stoney".  The track features vocals from Quavo, and was produced by Metro Boomin, Frank Dukes and Louis Bell.  The track peaked at number eight on the US "Billboard" Hot 100, becoming his highest peaking single on the chart, surpassing the number 14 peak of his debut hit, "White Iverson", until it was again surpassed by his track "Rockstar" featuring 21 Savage, which peaked at number 2.
Title: Irony (Wonder Girls song)
Passage: "Irony" is a song recorded by the South Korean girl group Wonder Girls, written and produced by Park Jin-young.  It was released as their debut single and the lead single from their debut album "The Wonder Years" on February 13, 2007, through JYP Entertainment.  It was also released as a maxi single and extended play (EP), titled "The Wonder Begins".  Three tracks, including "Bad Boy", "It's Not Love", and a remix version of "Irony", were on the EP.  "Bad Boy" was released as the second single in March 2007 while "It's Not Love" was released as the third single on April 27, 2007.  "Irony" became one of their biggest hits in South Korea.  An accompanying music video was also released and shows Sohee, Yeeun, Sunmi and Hyuna's revenge on Sunye's unfaithful boyfriend by using a voodoo doll to embarrass him.
Title: White Iverson
Passage: "White Iverson" is the debut single by American rapper Post Malone.  It was released on August 14, 2015, by Republic Records, as the lead single from his debut studio album, "Stoney".  The track was produced by Post Malone and Rex Kudo.  It peaked at number 14 on the "Billboard" Hot 100.
Congratulations (Post Malone song) White Iverson