The Obamas reveal favorite Movies, music and TV Shows of the year - including The Martian, Blackish and Bruno Mars

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Kendrick Lamar's 'How Much a Dollar Cost' is tops in the White House.

President Barack Obama says the song by the Grammy-nominated rapper from Compton, California, is his favorite song of 2015.

In an interview with People magazine that was released on Wednesday, Obama also shared his favorite book and movie of the year. They are 'Fates and Furies,' a novel about a marriage by Lauren Groff, and 'The Martian,' starring Matt Damon.

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President Barack Obama speaks in Emancipation Hall on Capitol Hill in Washington, Wednesday, Dec. 9, 2015, during an event to celebrate the 150th anniversary of the 13th amendment that abolished slavery

White House favorites: Kendrick Lamar's 'How Much a Dollar Cost' is tops in the White House. 'Fates and Furies,' a novel about a marriage by Lauren Groff, is Obama's favorite book of the year

The big screen: 'The Martian,' starring Matt Damon is another one of the President's favorites this year 

Groff seemed flabbergasted upon learning of Obama's book selection.

'Never, even in my most grandiose dreams, did I think the president would read my book, let alone like it,' she said through her publisher, Riverhead Books. 

Groff's book was a finalist for the National Book Award and has appeared on numerous lists of the year's best books.

Obama's wife, Michelle, revealed her picks, too, telling People that she can't get enough of Bruno Mars' song 'Uptown Funk.' She and a troupe of dancers performed to the lively song earlier this year on 'Ellen.'

For her favorite book, Mrs. Obama picked another marriage tome, 'The Light of the World,' by family friend Elizabeth Alexander. It's about the unexpected death of Alexander's husband in 2012 and raising their two sons in the aftermath.

And for the first lady's favorite movie? She chose 'Inside Out,' an animated film led by comedian Amy Poehler. 

First lady's approval: The first lady's favorite movie is 'Inside Out,' an animated film led by comedian Amy Poehler