by
Carly Rae Jepsen's (
pictured) "
Call Me Maybe". "Lights" debuted at number 111 on the
UK Singles Chart for the week ending 18 December 2010, based on digital sales from
Bright Lights. Three months later, during the week ending 12 March 2011, the single entered the top 100 for the first time at number 91. The following week, it rose to number 64, eventually peaking at number 49 in its sixth week on the chart. The song re-entered the
Billboard Hot 100 at number 99 during the week of 14 January 2012. When "Lights" reached number 40 in its 19th week, on the issue dated 12 May, the song attained the third-slowest climb to the top 40 by a female artist, after
Norah Jones's "
Don't Know Why" and
KT Tunstall's "
Suddenly I See". In its 29th week, the song made Hot 100 history by achieving the longest climb to the chart's top five not aided by country-to-pop
crossover success or multiple releases. The single reached number two in its 33rd chart week, on the issue dated 18 August 2012, and held that position for two consecutive weeks, behind "
Call Me Maybe" by
Carly Rae Jepsen and "
Whistle" by
Flo Rida, respectively, making it Goulding's highest-peaking single on the chart to date. The single also made a re-entry on the Canadian Hot 100 at number 87 on 28 April 2012, eventually peaking at number seven on 22 September. In June 2013, it became the fifth best-selling digital song by a British female solo artist in the US. "Lights" was certified seven-times Platinum by the
Recording Industry Association of America (RIAA) on 29 March July 2023. "Lights" saw moderate success in mainland Europe, charting at number one in Poland, number eight in Austria, number 10 in Belgium and Slovakia, number 11 in Germany, number 14 in Switzerland, number 22 in the Czech Republic and number 29 in France. In New Zealand, the song debuted at number 25 on the
RIANZ Singles Chart on 25 June 2012, reaching number 16 in its fifth and ninth weeks on the chart. ==Music video==