Career
Early on, Federline worked as a backup dancer for Christina Milian, Justin Timberlake, P!nk, Michael Jackson, and the band LFO, future wife Britney Spears' opening act. Federline would later co-star with Spears on the 2005 reality television show, Britney and Kevin: Chaotic, which consisted of home videos shot by the couple. He also appeared in the 2004 movie, You Got Served.
Federline has been signed to model for the Five Star Vintage line by the San Francisco-based Blue Marlin clothing company. The initial series of ads is set to run in September 2006. When asked if Federline's role was permanent, he said, "We have to see how this first ad campaign goes."
After being introduced by his visibly pregnant wife, Federline performed his first "official" single titled "Lose Control" as the final act of the 2006 Teen Choice Awards. Federline was nominated in another category (Teen Choice Award for Male Red Carpet Fashion Icon) though he did not win. Federline's music performance on the Teen Choice Awards was widely panned by the hip hop community, as echoed by Elliot Wilson, chief editor of XXL Magazine: "I just think we ignore him. He's a joke, basically. ... I just don't think he gets it. He doesn't get that he's Britney's man and it's hard to take him seriously." Federline's previous single, "PopoZão," released on New Year's Day, 2006, received a similar chilly response, with Entertainment Weekly stating that PopoZão was worse than expected, while music trade magazine Billboard echoed that the song was “a monument to mediocrity.”
Federline will release his album, Playing With Fire on his own record label "Federation Records", which will be distributed through Sony BMG.
Federline will make his television acting debut in an episode of CSI that will air in October. He also is to appear in three episodes of Entourage.
Personal life
Kevin Federline is noted for his marriage to Dance-pop singer and songwriter Britney Spears. Federline was previously involved in a relationship with actress Shar Jackson, with whom he has two children. Their daughter, Kori, was born on July 31, 2002, and their son, Kaleb, was born on July 20, 2004. He has had two additional children with Spears, Sean Preston (born on September 14, 2005) and Sutton Pierce (born on September 12, 2006).
While Federline and Jackson were awaiting the birth of their second child, Federline met Spears at a Hollywood club called Joseph's in April 2004. Following this, Spears told People,
We stayed with each other for a week. I was supposed to get on a plane to go on tour. I told my mom I didn't want to go on tour. I was like, "I want to stay in L.A." At the time, I didn't think he'd come with me because we'd just met. Then I was supposed to get on a plane. Then I canceled my flight. I turned the car around, called Kevin and said, "Where are you at?" The next week I was like, "Kevin, get your passport and come out with me."
After Spears invited him on the European leg of her The Onyx Hotel Tour, they spent a little over a month abroad, and she proposed to him on the plane ride back to New York, from Ireland. Federline initially said no. He told People that, "It wasn't like a "Will you marry me?" It wasn't that straightforward. The way she said it was kind of beating around the bush. Still, I was taken by surprise. I thought the guy was supposed to ask the girl. So a couple of minutes went by and then I asked her."
Regarding Federline and Spears' relationship, Shar Jackson has stated, "it wasn't like just breaking up a relationship. It was like breaking up a family."
Public reception
Federline has been the subject of ridicule on television and on the World Wide Web by the likes of late night talk show hosts Conan O'Brien and Jay Leno, and E! cable channel's The Soup. He's also been made fun of by the animated series Family Guy, the website Fark.com, MadTV, and Saturday Night Live.
Federline has also become notorious in the media for his heavy smoking, and was criticized for continuing to do so around his pregnant wife. He is often photographed with a cigarette in hand.
Source: http://www.popstarsplus.com/celebrities_kevinfederline.htm