Tonight, as the actress celebrates her 2014 Emmy Award nod, her boyfriend, musician Jack Antonoff, will surely be supporting his girlfriend.
Here’s what you need to know about the man behind the Girl.
1. He’s 1/3 of ‘We Are Young’
Antonoff is the guitarist for the band Fun, whose 2011 anthem “We Are Young” brought them worldwide fame, and spent seven weeks in the No. 1 slot on Billboard’s Hot 100.
He toured with bandmates Nate Ruess and Andrew Dost for almost three years, promoting their breakthrough album Some Nights.
2. He Dates Lena
They met in April of 2012, the same month that Girls debuted.
Dunham told the Huffington Post about their first date:
I remember talking with him on our first date and him being like, ‘God, all the articles about your nudity on the show are such bullshit,'” she continues. “It’s funny, ’cause in some ways that’s the conversation we still have when I’m upset [about stuff I read].
In the video above, he talks about how Lena yells, “Go,” in the background of one of his songs.
3. He Was Scarlett’s High School Sweetheart
— Steven Fuller (@ThatKoffeeBurns) February 25, 2014
Antonoff dated Scarlett Johansson when they were both students at the Professional Children’s School in New York City.
When they were both 17, they dated for a year.
He told GQ about his high school experience:
Like, I went to high school in New York City, and when I went, there were all these kids that had grown up in the city, and when I met them, they had done all the drugs, seen all the bands, eaten all the food, seen all the films by the time they were fourteen. They’d had all the sex.
NEW OLD PHOTOS Scarlett Johansson & her highschool boyfriend Jack Antonoff (Lena Dunham's current boyf) prom pictures pic.twitter.com/gDddQYOSeV
— Miss Scarlett Fan (@Scarlett_online) April 8, 2014
4. His Sister’s a Famous Designer
His sister, Rachel, is a New York-based designer.
Watch the interview above with the famous siblings and Teen Vogue.
Jack told the New York Times, ““Everything I do, my first thought is, I wonder if Rachel will think it’s cool. In that sense, we really do everything together.”
Rachel is dating her brother’s bandmate, Ruess.
5. He Started Bleachers
When he put out an album, Strange Desire, under the name Bleachers, there was speculation that he’d left Fun.
“As soon as I released the single, people were like, “Are you leaving Fun?” I was like, “No!”, I have a lot of work and I want to put it out there,” he told GQ.
Dunham actually directed his music video for his single “I Wanna Get Better,” shown above.
“She’s a great director. I didn’t have to worry about it because I knew she would handle it, whereas sometimes with other videos you’re scared like, ‘Is this going to be right?’ … I, just for once in my life, got to do nothing,” he told the Salt Lake Tribune.