'Genie' was among the first K-pop girl group songs to chart significantly in Japan, helping open the Japanese market for Korean girl groups and paving the way for the Hallyu wave in Japan.
Girls' Generation's Japan debut single 'Gee' (Japanese version) topped the Oricon Weekly Singles Chart, making them one of the most successful Korean acts in the Japanese market.
Girls' Generation became the first K-pop act to perform on 'The Late Show with David Letterman,' one of America's most iconic late-night talk shows, marking a major milestone for K-pop in the US.
'Gee' by Girls' Generation became the first music video by a K-pop girl group to reach 100 million views on YouTube, a landmark moment in K-pop's YouTube history.