Celebrity Lena Dunham's Friends Wish Her a Happy 30th Birthday By Michelle Guerrere Updated on May 14, 2016 @ 12:00PM Pin Share Tweet Email Photo: instagram / reesewitherspoon A 30th birthday is a big deal for anyone, but apparently even more so if you are Girls actress and writer Lena Dunham. The HBO star's closest friends took to social media to pay homage to the member of their #girlsquad yesterday, welcoming her into the next decade of her life. Reese Witherspoon (who recently celebrated her 40th birthday) posted a snap of herself and Dunham on Instagram, saying: #HBD to this brilliant, creative, sparkly lady! Keep shining bright...Welcome to your 30's!!" Bestie Taylor Swift couldn't choose one photo to share, so she made a collage of four of her favorites with a sweet shoutout on social media: "One of my favorite people in the world turns 30 today and I can't help but think about how different my life would've been without our long talks, arts and crafts projects, and running-into-each-others'-arms- hugs...Everyone who knows you is better because of it." Dunham's Girls co-star Allison Williams joined in, captioning a throwback picture from Season One: "I've adored and admired you since somewhere around this scene in our 1st episode." Lena Dunham is 30! 30 Times The Birthday Girl Kept It Real—and We Loved Her For It Throw in heaps of flowers from boyfriend Jack Antonoff and a teenage photo from her childhood babysitter, and it seems Dunham had a pretty epic birthday. Cheers, Lena!