f(x) formed bySM and debuted in September 2009 with the digital single "La Cha Ta" and two month later, they released their first physical single "Chu~♡". In 2010, their first EPNu ABO was released. The single "Nu ABO" peaked number one on Gaon Chart. In 2011, the group released their first studio albumPinocchio, which was later re-released as Hot Summer in the same year. The album spawned two more singles: "Pinocchio (Danger)" and "Hot Summer" reached number one and two on Gaon Chart. The album was listed as one of the best-selling album of 2011[1] and also the single "Hot Summer" became one of the best-selling single of 2011.[2] Their second EPElectric Shock (2012) and second studio albumPink Tape (2013) reached number one. The single "Electric Shock" from the second EP and "Rum Pum Pum Pum" from the second studio album all peaked atop South Korea's singles chart. Their albumPink Tape also garnered widespread critical acclaim with became the only K-pop album to be featured on US music channel Fuse's "41 Best Albums of 2013"[3][4] and was named the "Greatest K-pop Album of the 2010s" by Billboard.[5]
f(x) debuted in Japan with released the Japanese versions of their singles "Hot Summer".[6] The single was re-released in their first Japanese single called "Summer Special: Pinocchio / Hot Summer in 2015. In 2016, their second Japanese single "4 Walls / Cowboy" was released.
Pinocchio - 2011년 18주차 Album Chart.Gaon Music Chart (in Korean). Korea Music Content Industry Association.Archived from the original on February 6, 2015. RetrievedJanuary 27, 2017.
Pink Tape - 2013년 32주차 Album Chart.Gaon Music Chart (in Korean). Korea Music Content Industry Association.Archived from the original on January 8, 2021. RetrievedJanuary 27, 2017.
Red Light - 2014년 29주차 Album Chart.Gaon Music Chart (in Korean). Korea Music Content Industry Association.Archived from the original on August 17, 2017. RetrievedJanuary 27, 2017.
4 Walls - 2015년 45주차 Album Chart.Gaon Music Chart (in Korean). Korea Music Content Industry Association.Archived from the original on August 18, 2017. RetrievedJanuary 27, 2017.
Hot Summer - 2011년 26주차 Album Chart.Gaon Music Chart (in Korean). Korea Music Content Industry Association.Archived from the original on May 10, 2015. RetrievedJanuary 27, 2017.
Nu ABO - 2010년 20주차 Album Chart.Gaon Music Chart (in Korean). Korea Music Content Industry Association.Archived from the original on July 4, 2015. RetrievedJanuary 27, 2017.
Nu ABO - 2010년 20주차 Digital Chart.Gaon Music Chart (in Korean). Korea Music Content Industry Association.Archived from the original on March 9, 2015. RetrievedJanuary 27, 2017.
Mr. Boogie - 2010년 20주차 Digital Chart.Gaon Music Chart (in Korean). Korea Music Content Industry Association.Archived from the original on March 9, 2015. RetrievedJanuary 27, 2017.
Pinocchio - 2011년 18주차 Digital Chart.Gaon Music Chart (in Korean). Korea Music Content Industry Association.Archived from the original on January 8, 2021. RetrievedJanuary 27, 2017.
Hot Summer - 2011년 27주차 Digital Chart.Gaon Music Chart (in Korean). Korea Music Content Industry Association.Archived from the original on February 4, 2015. RetrievedJanuary 27, 2017.
Red Light - 2014년 29주차 Digital Chart.Gaon Music Chart (in Korean). Korea Music Content Industry Association.Archived from the original on November 25, 2016. RetrievedJanuary 27, 2017.
4 Walls - 2015년 45주차 Digital Chart.Gaon Music Chart (in Korean). Korea Music Content Industry Association.Archived from the original on August 29, 2019. RetrievedJanuary 27, 2017.
All Mine - 2016년 30주차 Digital Chart.Gaon Music Chart (in Korean). Korea Music Content Industry Association.Archived from the original on August 15, 2016. RetrievedJanuary 27, 2017.
2010년 05월 Download Chart (see #6).Gaon Music Chart (in Korean). Korea Music Content Industry Association.Archived from the original on February 2, 2017. RetrievedJanuary 27, 2017.
2010년 07월 Download Chart (see #66).Gaon Music Chart (in Korean). Korea Music Content Industry Association.Archived from the original on February 2, 2017. RetrievedJanuary 27, 2017.
2011년 04월 Download Chart (see #6).Gaon Music Chart (in Korean). Korea Music Content Industry Association.Archived from the original on October 19, 2020. RetrievedJanuary 27, 2017.
2011년 05월 Download Chart (see #5).Gaon Music Chart (in Korean). Korea Music Content Industry Association.Archived from the original on June 2, 2016. RetrievedJanuary 27, 2017.
2011년 06월 Download Chart (see #49).Gaon Music Chart (in Korean). Korea Music Content Industry Association.Archived from the original on December 6, 2018. RetrievedJanuary 27, 2017.
2011년 06월 Download Chart (see #4).Gaon Music Chart (in Korean). Korea Music Content Industry Association.Archived from the original on December 6, 2018. RetrievedJanuary 27, 2017.
2011년 07월 Download Chart (see #15).Gaon Music Chart (in Korean). Korea Music Content Industry Association.Archived from the original on February 23, 2015. RetrievedJanuary 27, 2017.
2011년 08월 Download Chart (see #67).Gaon Music Chart (in Korean). Korea Music Content Industry Association.Archived from the original on November 16, 2020. RetrievedJanuary 27, 2017.
2012년 06월 Download Chart (see #3).Gaon Music Chart (in Korean). Korea Music Content Industry Association.Archived from the original on September 26, 2018. RetrievedJanuary 27, 2017.
2012년 07월 Download Chart (see #16).Gaon Music Chart (in Korean). Korea Music Content Industry Association.Archived from the original on October 12, 2020. RetrievedJanuary 27, 2017.
2012년 08월 Download Chart (see #36).Gaon Music Chart (in Korean). Korea Music Content Industry Association.Archived from the original on October 10, 2020. RetrievedJanuary 27, 2017.
2013년 07월 Download Chart (see #33).Gaon Music Chart (in Korean). Korea Music Content Industry Association.Archived from the original on March 4, 2016. RetrievedJanuary 27, 2017.
2013년 08월 Download Chart (see #3).Gaon Music Chart (in Korean). Korea Music Content Industry Association.Archived from the original on January 18, 2018. RetrievedJanuary 27, 2017.
2013년 09월 Download Chart (see #61).Gaon Music Chart (in Korean). Korea Music Content Industry Association.Archived from the original on April 2, 2019. RetrievedJanuary 27, 2017.
2014년 07월 Download Chart (see #6).Gaon Music Chart (in Korean). Korea Music Content Industry Association.Archived from the original on November 8, 2018. RetrievedJanuary 27, 2017.
2014년 08월 Download Chart (see #90).Gaon Music Chart (in Korean). Korea Music Content Industry Association.Archived from the original on March 4, 2016. RetrievedJanuary 27, 2017.
2015년 10월 Download Chart (see #26).Gaon Music Chart (in Korean). Korea Music Content Industry Association.Archived from the original on November 25, 2016. RetrievedJanuary 27, 2017.
2015년 11월 Download Chart (see #12).Gaon Music Chart (in Korean). Korea Music Content Industry Association.Archived from the original on July 27, 2017. RetrievedJanuary 27, 2017.
2015년 12월 Download Chart (see #67).Gaon Music Chart (in Korean). Korea Music Content Industry Association.Archived from the original on March 4, 2016. RetrievedJanuary 27, 2017.
2016년 01월 Download Chart (see #90).Gaon Music Chart (in Korean). Korea Music Content Industry Association.Archived from the original on March 14, 2016. RetrievedJanuary 27, 2017.
2015년 52주차 Download Chart (see #13).Gaon Music Chart (in Korean). Korea Music Content Industry Association.Archived from the original on April 2, 2016. RetrievedJanuary 27, 2017.
2015년 53주차 Download Chart (see #94).Gaon Music Chart (in Korean). Korea Music Content Industry Association.Archived from the original on September 26, 2018. RetrievedJanuary 11, 2016.
2016년 30주차 Download Chart (see #7).Gaon Music Chart (in Korean). Korea Music Content Industry Association.Archived from the original on October 5, 2016. RetrievedJanuary 27, 2017.
2016년 31주차 Download Chart (see #5).Gaon Music Chart (in Korean). Korea Music Content Industry Association.Archived from the original on August 15, 2016. RetrievedJanuary 27, 2017.
2016년 32주차 Download Chart (see #24).Gaon Music Chart (in Korean). Korea Music Content Industry Association.Archived from the original on September 9, 2016. RetrievedJanuary 27, 2017.
2016년 33주차 Download Chart (see #32).Gaon Music Chart (in Korean). Korea Music Content Industry Association.Archived from the original on September 9, 2016. RetrievedJanuary 27, 2017.
2016년 34주차 Download Chart (see #77).Gaon Music Chart (in Korean). Korea Music Content Industry Association.Archived from the original on August 29, 2016. RetrievedJanuary 27, 2017.