Bill Hader and Rachel Bilson couple make their red carpet debut at the Golden Globe Awards.

[Rachel Bilson and Bill Hader are officially dating! This couple (!!!) were a couple (!!!) on the red carpet at the Golden Globes. The two have been fueling dating rumors for weeks: they were first spotted having coffee (opens in new tab) in Hader's hometown of Tulsa, Oklahoma, and were recently photographed grocery shopping together in Los Angeles on New Year's Eve (opens in new tab). (opens in new tab)) in Los Angeles on New Year's Eve. However, their appearance at the Golden Globes is the first official confirmation we have gotten of their relationship status.

Hader is nominated for a Golden Globe for Best Actor in a Television Series Musical or Comedy for his role in HBO's Barry. Before their red carpet appearance, Bilson's makeup artist shared a very sweet photo of the couple and a behind-the-scenes photo of the OC actress' beauty look, writing: "And they're off to the Globes! Cutest couple @rachelbilson (opens in new tab) and #billhader (opens in new tab)! ❤️ Rachel's hair by @davynewkirk (opens in new tab), styled by @nicolechavezstyle (opens in new tab) and makeup by me! Breakdown coming soon! #goldenglobes (opens in new tab) #rachelbilson (opens in new tab)"

A very cute couple indeed!

Hader and Bilson co-starred in The To Do List in 2013. Hader divorced his wife Maggie Carey in 2017 and they share three daughters together, Hannah (10), Harper (7), and Hayley (5). Bilson last tied the knot with Nick Viall (yes, the Nick Viall of The Bachelor/Bachelorette) and shares a daughter, Briar Rose (5), with the former Hayden Christensen.

For the big moment, Hader opted for a classic tuxedo, while Bilson wore a gorgeous Brock Collection gown with delicate gold embroidery and a lacy, lingerie-style bodice and skirt. The new couple (!!!!) were very lovely.