Leave it to Dianna Agron to celebrate her birthday in the most adorable way.
The Glee star rang in the big 2-8 with a number of pals, including former Gossip Girl star Jessica Szohr, with a D-themed bash (in honor of her first name) during which guests came dressed up as a daiquiri, Dorothy from Oz and Double Ds.
As for Dianna? She sported the cutest deer costume we've ever seen, rocking antlers and face makeup with her blond hair pulled back in a bun.
The 28-year-old beauty was all smiles as she posed for pics with pals, clearly enjoying her time at the fun-filled bash.
And there was no shortage of birthday wishes for the B-day babe, who received a number of tweets from friends and fellow Glee castmates.
Harry Shum Jr.: "To conclude the April birthdays, Happy Birthday to one of my favorite people @DiannaAgron"
Ashley Fink: "Awwww!!! Happy, happy, happy, birfday @DiannaAgron!!!! The kindest of the kind. Love you forever and ever."
And clearly, Agron was taken aback by all the love, posting on Twitter to thank her fans and friends for the well wishes.
"Overwhelmed. What love. I am pretty speechless. Have to say. This is one of my best birthdays to date. And the day is only halfway done!" she wrote.
Glad it was a special one, girl!