Lena Dunham reveals her 'BFF 4 lyfe' -- and we love him

No secret here that we're fans of Lena Dunham -- who just earned another Emmy nomination for Girls.

And she's a fan of ... her driver.

"This is Brian, the man who gets me safely to work every day and my BFF 4 lyfe," she posted on Instagram.

Speaking of Emmys (and drivers), Dunham also shared her favorite image of herself and Girls co-star Adam Driver, who's up for supporting actor for the second time.