"Crystallize" is a song by American violinist Lindsey Stirling from her self-titled studio album, Lindsey Stirling. The song was released as a music video on YouTube on February 23, 2012. The video proved to be a success, with more than 42 million views at the end of the year, and was the eighth-most watched video of 2012. The song became Lindsey Stirling's album's lead single due to its success. The song appeared on three Billboard charts and, according to Nielsen SoundScan, by April 2013 it had reached 234,000 digital sales. On February 4, 2014, almost two years after the release of the video, "Crystallize" earned Stirling's first RIAA certified gold record by selling 500,000 copies in the United States. At the end of 2013, on the year-end chart, "Crystallize" finished first in the chart of Classical Digital Songs. On July 27, 2014, the official music video reached 100 million views, being Stirling's first YouTube video in doing so.

The music video was filmed at the ice castles of Silverthorne, Colorado. It was co-directed by Lindsey Stirling herself and Devin Graham, with Graham as the videographer. It had over 42 million views at the end of 2012, and it reached #8 on the list of the most-watched YouTube videos of that year. Since "Crystallize" was released, Lindsey's popularity has increased considerably and it is Lindsey's most-watched video of her YouTube channel with over 147 million views.

Speaking with Artistdirect, Stirling explained the background to the song: "It has a pretty deep meaning," she said. "Basically, it's about creating inner beauty in yourself first. It all comes back to research being done by a scientist (Dr. Masaru Emoto) who studied the crystallization of water."

"Basically, he'd test out water and look at it at a magnified level as it crystallized in different environments," Stirling continued. "If it was in positive environments where good things were being spoken to it, the crystals came out beautiful. Whereas if negative things were said to these little vials of water, these crystals were these jagged shapes that were meaningless."

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Wikipedia