Who Is Brie Larson's Boyfriend, Alex Greenwald?

Here's Alex

Image Source: Getty / Kevork Djansezian

Alex is Brie's perennial date, most notably during the 2016 award season, when she swept all the big shows.

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Image Source: Getty / Christopher Polk

Where they packed on the PDA.

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Image Source: Getty / Kevin Winter

Including in the audience.

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Image Source: Getty / Kevork Djansezian

So, who is this guy who gets this look of love?

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Image Source: Getty / Barry King

Alex, 37, is a musician who you'd know best as the lead singer of the band Phantom Planet.

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Not ringing a bell? It was the band that actor Jason Schwartzman was the drummer in (Alex is on the left and Jason is on the right on this album cover).

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Image Source: Getty / Jeff Vespa

The band was most famous for making The O.C.'s theme song, "California" — here's Alex hanging out with the cast. You definitely know it.

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PHASES - I'm In Love With My Life [Official Music Video]

These days, Alex makes music with LA-based band PHASES.

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Image Source: Newmarket Films

Oh, and before getting into music, Alex was an actor. He terrorizes Jake Gyllenhaal as a high school bully (alongside Seth Rogen) in 2001's Donnie Darko.

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Image Source: Getty / Kevork Djansezian

Now, he plays the best supporting role to Brie. Here they are at 2016's SAG Awards, looking totally adorable.

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Image Source: Getty / Kevork Djansezian

And again, here he is showing his love and support for Brie when she won at the Spirit Awards in 2016.

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Image Source: Getty / Christopher Polk

Looks like they've both won.

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