January Jones delighted fans on Wednesday with a sneak peek into her ultra-private personal life when she served up snapshots from a family wedding.
The X-Men star looked radiant in images posted to Instagram in which she appeared to be in the throes of celebrations.
January was dressed in a burgundy, velvet gown and was singing and laughing her heart out at her sister, Jina's recent nuptials.
Her caption read: "Going through my sister's wedding pics and realizing I was 'that girl'."
January then made a confession about her personal life when she added: "I blame this on not having had my main creative outlet for a while cause I haven’t touched booze in years. Ok fine, there’s no excuse," before she addressed her cute, cropped hairdo. "Also no excuse for the mullet."
Her Mad Men co-star, Christina Hendricks, was one of the first to like January's post before she was inundated with comments from fans and friends who wrote: "Wait, were you singing? And you’ve never looked more beautiful- pure JOY right there," while a second added: "Be that girl at my wedding any day," and many made reference to the similarities between January and her other sister, Jacey, who was singing alongside her.
Some fans made reference to January's decision to quit alcohol and added #soberlife and #sobriety'. It may come as a surprise to some fans as the Mad Men actress has been open about her drinking habits in the past, confessing that she loves "beer and sports".
"I like a Stella or a Peroni or something like that. Nothing too fancy," she told Bang Showbiz. In more recent years, however, she's been photographed sipping non-alcoholic beer in place of her old favorites.
January was spotted picking up a dress for Jina's wedding in the summer and given the close bond between the siblings, the big day was likely to be a fun-filled affair.
Jina is an actress too and according to their wedding website on The Knot, she and her now-husband, Tyler King, married on September 24 in Larkspur, Colorado. It names January as co-maid of honor with Jacey.
January didn't reveal if she had a date for the wedding, but her son, Xander, 12, would have been in attendance at the family affair.
She has shared relationships with many a famous face, including Ashton Kutcher, Jim Carrey and singer Josh Groban, but has remained tight-lipped about the identity of Xander's paternity, admitting her purpose in life as a single mom is to "provide stability" for her son.
In a candid interview with Red magazine about her motherhood journey, the Golden Globe nominee revealed it's only been her and Xander from the beginning.
Get the lowdown on the biggest, hottest celebrity news, features and profiles coming out of the U.S. Sign up to our HELLO! Hollywood newsletterand get them delivered straight to your inbox.