October 08, 2014 11:10
K-pop girl group 2NE1 has topped Billboard's World Digital Songs chart with "I Am the Best," which was originally released in June 2011.
The belated success comes as the song is featured in Microsoft's Surface Pro 3 advertisement, which went on the air in August.
Billboard on Monday said, "Earning the best sales week for any of their songs, the K-pop girl group is the first non-PSY act to top the Billboard chart."
The song's official music video has received over 100 million hits on YouTube, according to the Billboard.
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