Lena Dunham famously called Howard Stern a 'cartoon of a female Jewish horse' after he accused her of being a 'fat Jonah Hill-looking girl.'

But the 28-year-old starlet revealed she made peace with the America's Got Talent judge - who turns 61 on Monday - on Thursday night's episode of The Tonight Show Starring Jimmy Fallon.

'I really care about Howard, like, I really think he's a voice for important causes,' the Girls creator and star said.

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Last year's beef: Lena Dunham famously called Howard Stern a 'cartoon of a female Jewish horse' after he accused her of being a 'fat Jonah Hill-looking girl'

'I think he's an outspoken feminist. And these are words I'm like, "What am I saying? Who am I?" But he's one of the people who really speaks out on issues that matter to me and matter to a lot of women and I think that we should be thankful that he's in the world.'

Both Fallon and Dunham had attended Stern's 60th birthday bash at Hammerstein Ballroom a year ago, which she called a 'surprisingly inspiring evening.'

'I didn't think I was going to cry with joy and be so moved by his life's work and his relationship with [co-host] Robin Quivers. I lost it,' admitted the two-time Golden Globe winner.

Burying the hatchet: But the 28-year-old starlet revealed she made peace with the America's Got Talent judge - who turns 61 on Monday - on Thursday night's episode of The Tonight Show Starring Jimmy Fallon

The Girls creator and star said: 'I really care about Howard....I think he's an outspoken feminist...and if you told me I was going to say that five years ago I would've slapped you in the face'

'I didn't think I was going to cry with joy and be so moved by his life's work': Both Fallon and Dunham had attended Stern's 60th birthday bash at Hammerstein Ballroom a year ago

'It was beautiful. It was a celebration of a man who's truly made a difference, and if you told me I was going to say that five years ago I would've slapped you in the face.'

The Happy Christmas actress looked sophisticated in a sheer-collared LBD and a plaited, boxer-style updo courtesy of Rheanne White.

Lena then teamed up with Tonight Show announcer Steve Higgins to win a Pictionary game thanks to their life-like renderings of a tooth fairy, pickle jar, and wingman.

The two-time Golden Globe winner admitted: 'I lost it. It was beautiful. It was a celebration of a man who's truly made a difference'

Someone has a stylist! The Happy Christmas actress looked sophisticated in a sheer-collared LBD and a plaited, boxer-style updo courtesy of Rheanne White

Triumphant: Lena then teamed up with Tonight Show announcer Steve Higgins (2-L) to win a Pictionary game thanks to their life-like renderings of a tooth fairy, pickle jar, and wingman

The very next morning, the Not That Kind of Girl author donned a patterned Opening Ceremony LBD for Live! with Kelly and Michael.

Dunham finally addressed the curious bauble on her left hand, which caused a Twitter frenzy two months ago.

'I'm not engaged,' she proclaimed.

'I love my boyfriend [Jack Antonoff]. We're very committed together, but these are actually a stack of friendship rings I wear with my best friend [and Girls producer] Jenny Konner.'

Bright and early: The very next morning, the Not That Kind of Girl author donned a patterned Opening Ceremony LBD for Live! with Kelly and Michael

'We are not at the moment engaged': Dunham finally addressed the curious bauble on her left hand, which caused a Twitter frenzy two months ago

Lena said: 'These are actually a stack of friendship rings I wear with my best friend [and Girls producer] Jenny Konner'

'We're having a great time living together': The seven-time Emmy nominee said her boyfriend, Bleachers frontman Jack Antonoff, has given her a really beautiful ring but it's being fixed (pictured January 5)

The seven-time Emmy nominee said the Bleachers frontman has given her a really beautiful ring but it's being fixed.

The zaftig funnywoman clarified: 'We adore each other. We're having a great time living together with our crazy dog [Lamby] but we are not at the moment engaged.'

This Sunday, Lena will compete for two Golden Globe Awards at the ceremony airing this Sunday on NBC.

Dunham is nominated for best actress in a TV series musical/comedy, and her hit show scored a nod for best TV series musical/comedy.

Will she win? This Sunday, Lena will compete for two Golden Globe Awards at the ceremony airing this Sunday on NBC

The adventures of Hannah Horvath: Dunham is nominated for best actress in a TV series musical/comedy, and her hit show scored a nod for best TV series musical/comedy

Sunday night also marks the 10-episode fourth season premiere of Girls on HBO.

Produced by Judd Apatow, the hit show is characterized by its originality, explicit sex scenes, and unprecious treatment of women in their 20s in Brooklyn.

Guest stars this season include Spike Jonze, Natasha Lyonne, Zachary Quinto, Jason Ritter, Gillian Jacobs, Marc Maron, and Fred Melamed.

The Independent Spirit Award winner will also appear in this year's HBO tennis mockumentary 7 Days In Hell alongside Andy Samberg, Kit Harington, Michael Sheen, and June Squibb.

First episode is called 'Iowa': Sunday night also marks the 10-episode fourth season premiere of Girls on HBO