“Lady Bird” director and writer Greta Gerwig pieced together a masterpiece and music played a big part in her audio-video symphony.

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The 34-year-old actress’ directorial debut earned supreme praise and a 100 per cent approval rating from 150 reviews on Rotten Tomatoes.  Speaking with “Saturday Night Live” alum Seth Meyers on “Late Night”, Gerwig shared a letter she wrote Justin Timberlake asking for permission to use “Cry Me a River” in her film.

“I mean, what can I say? You’re Justin Timberlake,” Gerwig read to Meyers and the audience. “You were the soundtrack to my adolescence. Your rise corresponded exactly with my very awkward puberty.”

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The entire letter was captured via screenshot by Jackson McHenry of Vulture.

Gerwig also reached out to Dave Matthews to use “Crash Into Me”, describing it as “the most romantic song ever.”

“Lady Bird” stars the sublime Saoirse Ronan and recorded the best theatre average of 2017 and the highest-ever for a film directed by a woman, thanks to its limited release.

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