[2][3] He is known for his two-year marriage to American singer Britney Spears and the public child custody battle that followed their divorce.

Kevin Earl Federline was born on March 21, 1978, in Fresno, California, to parents Mike and Julie (née Story), a car mechanic and former bank teller from Oregon, respectively.

In the ninth grade, Federline dropped out of high school (later earning a certificate of General Educational Development), and delivered pizzas for work.

[7] For a number of years, Federline worked as a backup dancer for Michael Jackson, Justin Timberlake, Destiny's Child, Pink,[8] and LFO.

[12][13] Federline has appeared in several music videos as a dancer, including Christina Milian's "AM to PM" (2001), Pink's "Get the Party Started" (2001) and Justin Timberlake's "Like I Love You" (2002).

[16][17] Federline initially released a download-only song, "Y'all Ain't Ready", and a physical single, "PopoZão" in 2006, shortly after his marriage to Spears.

[5] Instead, the first official single was "Lose Control", which he premiered on the Teen Choice Awards show on the Fox network in late summer 2006.

Federline has been signed to model for the Five Star Vintage line by the San Francisco-based Blue Marlin clothing company.

[20] Federline starred in a Nationwide Mutual Insurance Company commercial during Super Bowl XLI on February 4, 2007, as part of its "Life Comes at You Fast" ad series.

Then reality sets in as Federline is shown now working in a fast-food restaurant with his manager yelling at him, the punchline of the ad being "Life comes at you fast".

[21] The Hollywood Reporter wrote that Federline was paid $377,000 for the commercial, and made $15,000 for appearing at his 29th birthday party at Pure nightclub in Las Vegas.

[22] Federline appeared on the December 2007 cover of Details magazine, and he was named 7th most-influential man under 45, a spot he shared with Larry Birkhead.

[26] In 2010, Federline appeared on the seventh season of VH1's weight-loss reality television show Celebrity Fit Club.

Filming was taking place in November which is the hottest time of the year in the Kimberley region of northern Western Australia.

[41] In June 2019, Federline performed a DJ set at Harrah's Hotel and Casino in Atlantic City, New Jersey.

[7][45] The couple separated shortly before their son's birth, as Federline ended things with Jackson for a relationship with pop singer Britney Spears.

[47] After three months of dating, Federline and Spears announced their engagement in July 2004; they were married on September 18 in a nondenominational ceremony at a residence in Studio City, California, but became legally valid on October 6.

[56] The following day, Federline filed a response to Spears' divorce petition, seeking physical and legal custody of their children.

[57] On July 26, 2008, court papers were filed stating Federline would retain sole legal and physical custody of the children while Spears would get visitation rights that would increase over time.

[66] Federline was first linked to former volleyball player Victoria Prince in 2008, when the two were both on the same recreational bowling team, the Party Animals.