Something I Need 21, 2015, Haenow performed the song at the 20th National Television Awards. The song debuted at number two in the Republic of Ireland, beaten to the top spot by Mark Ronson and Bruno Mars' "Uptown Funk" (which ironically received an early release because it was performed on "The X Factor" by eventual runner-up Fleur East). It became the first "X Factor" winner's single to miss the number one spot in Ireland since Steve Brookstein's "Against All Odds" in 2004. In the UK, the song debuted at number one on the UK Singles Chart, becoming the 2014 Christmas number one. The
I Was a Fool that the version was lovely. Writers for "Teen Beat" said they were falling in love with the song, and Mendler was very excited. In May 2013 Mendler performed the song on MTV Live UK. Matthew Dear premiered his remix of "I Was a Fool" on April 18, 2013. Its consists of an "icy, slow-building ambient bassline and beat" that Michael Nelson of Stereogum said to have made Tegan and Sara's vocals "somehow even more heartbreaking". On May 21, 2014, the duo teamed up with Indaba Music to start a remix contest for the song, with the prize being $750, inclusion