Bill Hader & Rachel Bilson Make It Red-Carpet Official at Golden Globes 2020

Just weeks after romance rumors started swirling about “Barry” star Bill Hader, 41, and “The O.C.” alum Rachel Bilson, 38, they are making their red-carpet debut!

On Sunday, Bill and Rachel posed as a couple at the Golden Globes, where he is nominated for Best Performance by an Actor in a Television Series - Musical or Comedy.

Rachel's makeup artist Amy Nadine posted an Instagram pic of the pair, calling them “the cutest couple ever.”

Less than a week ago, Rachel and Bill were seen stocking up on groceries at Ralph's in Los Angeles, fueling more rumors that they are an item.

In December, rumors started swirling about Bill and Rachel after they were seen holding hands at a Starbucks in his hometown of Tulsa, Oklahoma. TMZ was the first to report the news.

Bill and Rachel were co-stars in the 2013 film “The To Do List,” written and directed by his ex-wife Maggie Carey.

In 2017, Bill filed for divorce after 11 years of marriage. They have three daughters — Hannah, 10, Harper, 7, and Hayley, 5.

That same year, Rachel called it quits with Hayden Christensen, who is the father of her daughter Briar Rose, 5.

Bilson was recently linked to “The Bachelor” alum Nick Viall. Earlier this month, she shut down dating rumors, telling Us Weekly, “We're just friends. We've always just been friends. He's a really nice guy.”

As for their flirty interactions on social media, she pointed out that they were “just messing around.”

In July, Rachel told Nick on his podcast that she was still single. She said, “I was talking to this guy a few months back [and] anytime I would bring my daughter up, they would never pursue the question or ask more about her. It was a red flag because anyone that you're going to get involved with, if you have a kid, they have to be all about the kid.”

After Nick saw Bill and Rachel's Golden Globes debut, he joked on Instagram, "It makes it easier since I'm such a Barry fan."

Nick attended a Golden Globes after-party, but it is unclear if he ran into Rachel and Bill. He did pose for a photo with Jonathan Bennett at the party sponsored by Icelandic Glacial.