Born in Sioux Falls, SD, Jones was named by her parents after the character January Wayne from Jacqueline Susann's novel, Once is Not Enough. While attending Roosevelt High School, Jones spent her pre-modeling, pre-Hollywood time toiling away at a local Dairy Queen. At 18, she moved to New York City and made her first mark as a stunning model for hip suburban clothier Abercrombie & Fitch. After moving to Los Angeles to become an actress, Jones made her debut with a small role in the independent film "All the Rage" (1999), starring Jeff Daniels and Anna Paquin. She followed with a guest appearance in the Fox pilot, "Get Real," an irreverent family drama told from the perspective of three teenagers. Two years later, she had her biggest break to date when she landed a role in her first major motion picture, the teen-oriented thriller "The Glass House" (2001), starring Leelee Sobieski.Like all young and beautiful starlets on the cusp of fame, Jones quickly became a fixture on the young Hollywood scene. Her blonde beauty attracted a variety of male admirers, including then-relatively unknown pre-Demi Moore paramour Ashton Kutcher. The couple, who reportedly met in 1998 at an Abercrombie & Fitch shoot, dated for three years until Kutcher became enchanted with Moore. Jones moved on to funnyman extraordinaire Jim Carrey and "American Wedding" co-star Seann William Scott before meeting and falling for pop-classical singer and favorite "Oprah" guest, Josh Groban, in 2003. Meanwhile, Jones continued to hone her acting chops, landing roles in a variety of high-profile projects, playing a bank robber in the Bruce Willis-Billy Bob Thornton crime comedy "Bandits" (2001), a memorable lesbian sexpot with temperament issues in the Adam Sandler-Jack Nicholson hit comedy, "Anger Management" (2003), and a British tourist in the hit romantic comedy, "Love Actually" (2003). At the time her career began to heat up, Jones was featured as No. 82 in Maxim magazine's "Hot 100 of 2002" supplement. Next up was the star-making role of Cadence Flaherty, the beautiful sister and maid of honor to the not-so-blushing bride (Alyson Hannigan), as well as the love interest of an obnoxious hound (Seann William Scott) in "American Wedding" (2003). Though the film tanked, Jones received her first major coverage for a role that she had won from literally thousands of on-the-brink ingénues. Looking for further challenges, Jones learned how to swing dance for her role in "Dirty Dancing: Havana Nights" (2004), the critically maligned sequel to the 1987 dance classic. In a journey back to the small screen, she appeared in the recurring role of Marissa Wells on "Huff" (Showtime, 2004-06), a drama about a psychologist (Hank Azaria) who attempts to salvage the lives of his patients, while his own spirals down the drain.The actress continued to expand her range as a dramatic actress by portraying Barry Pepper's repressed wife in Oscar-winning actor Tommy Lee Jones' directorial debut, "The Three Burials of Melquiades Estrada" (2005). After a small supporting part in the earnest, but ultimately humdrum "We Are Marshall" (2006), Jones landed her most significant role to date on the wildly acclaimed series, "Mad Men" (AMC, 2007-2015), a subtle and darkly textured drama that depicts society and culture in the early 1960s as seen through the eyes of Madison Avenue advertising executives. Jones played Elizabeth "Betty" Draper, the wife of Sterling Cooper's junior partner, Don Draper (Jon Hamm), whose crushing dissatisfaction with life as a suburban housewife and mother causes deep psychological and emotional distress, which becomes heightened by her growing knowledge of her husband's infidelities. The series earned 16 Emmy Award nominations, including one for Outstanding Drama Series, though Jones was surprisingly left out of the actress categories. She did, however, earn a Golden Globe nomination in 2008 for Best Actress in the television drama category, a feat she repeated the following year. Back on the big screen, she joined the ensemble cast of the British-made comedy, "Pirate Radio" (2009), which focused on a strange, but exciting subculture of disc jockeys that sprung up in the late 1960s in opposition to the BBC giving rock-n-roll little airtime.As Jones' star power increased, so too did the public scrutiny of her private life. In the summer of 2010, after leaving an NBA viewing in West Hollywood, Jones inexplicably plowed her Range Rover into three cars, causing considerable damage but no injuries. Equally perplexing was that fact that she called celebrity chef Bobby Flay - whom she had just met at the party - for assistance. On Flay's advice, the actress left the scene on foot, only to return later and inform police that swarms of paparazzi were the reason she both crashed and fled. The incident was deemed an accident, and Jones was not charged. Around the same time she began a well publicized relationship with funnyman Jason Sudeikis, whom she had met while hosting an episode of "Saturday Night Live" (NBC, 1975-) in 2009. However, the long-distance nature of their relationship - Jones' film career dictated Hollywood, while Sudeikis' "SNL" commitments kept him in NYC - took its toll, and by January of 2011 they had amicably parted ways. Professionally, things progressed more smoothly, when Jones appeared in theaters opposite leading man Liam Neeson in the Hitchcockian action-thriller "Unknown" (2011). Reviewers were mixed on their reaction to Jones' performance.Meanwhile, Jones' reputation as an All-American sweetheart took another knock on the chin when comedic actor Zach Galifianakis made very public remarks about the actress' perceived rude and icy demeanor when he met her at a party earlier that year. For his part, Galifianakis had a few choice words for Jones in reply, after learning during his interview that Jones had claimed he was "the most naturally funny man" she had ever met. Unfazed by such gossip, Jones enjoyed the promotional run-up to her next major motion picture "X-Men: First Class" (2011), a sequel/prequel to the popular superhero franchise. Set in the Cold War era of the 1960s, Jones was in her element as the icy mutant villainess Emma Frost. Directed by British filmmaker Matthew Vaughn, the big budget extravaganza met with generally favorable reviews in addition to opening at No. 1 during its premiere weekend, but generally the film underperformed at the box office. Jones' contribution to the film, however, was not as universally acclaimed, particularly by "Lost" (ABC, 2004-2010) writer-producer Damon Lindelof, who, after viewing the film posted the Twitter comment that one of Jones' characters' mutant powers was apparently "Sucking at Acting."Adding to the increasingly tabloid nature of Jones' personal life was the fact that prior to the release of "X-Men: First Class," an extremely cagey - and romantically unattached - Jones made the announcement that she was pregnant, but refused to divulge the identity of the father. Immediately speculation ran rampant, and despite both of their denials, Sudeikis became the most likely candidate. That is, until reports of a "very close" working relationship between Jones and "X-Men" director Vaughn began to circulate. In response, an indignant Vaughn - married to former supermodel Claudia Schiffer - vehemently denied any implications of an affair with Jones, calling the accusations an "outright lie." Jones' response to the repeated inquiries about the father of her unborn child continued to be met with a deafening silence. Concurrent to the final season of "Mad Men," Jones co-starred in Will Forte's oddball sitcom "The Last Man On Earth" (Fox 2015-) as one of the two female survivors of a plague that otherwise destroyed life on earth.