Britney Spears — already mired in controversy over pictures of her driving with her baby son on her lap — plunged into a new drama when she stormed out on husband Kevin Federline after a fight with him at a star-studded Hollywood event, sources tell Star.
"They were really going at each other," says one eyewitness who watched the screamfest erupt Monday night as Spears and Federline sat in an opera box, watching Kanye West perform at a Rolling Stone/Verizon-sponsored pre-Grammy party at the hot nightclub Avalon.
"It was shortly after midnight and Kanye had only been on stage a few minutes when Kevin and Britney got into some big disagreement which turned into a full-scale shouting match. They both looked pretty angry and everyone else in the box was staring at them with amazement and shock. After a few minutes of yelling at each other, she stormed out leaving him in the box.
"She left with one of her bodyguards, got in her car and took off. Kevin stayed in the box with singer Brandy and his buddies, drinking the Sky Vodka that was being promoted at the club last night. He stayed till the end of the show.
The ugly incident was in sharp contrast to the couple's affectionate 10:45 arrival at the event, where Tom Cruise, Jessica and Ashlee Simpson, Paris Hilton and beau Stavros Niarchos, Matthew Perry, Brandy and a string of other celebrities were also guests.
Britney — showing off her shapely legs in a short, low cut black dress — was "all smiles and holding hands with Kevin, when they got here," the onlooker tells Star. "Everything seemed to be fine between them. Then, out of nowhere, they started this huge fight. Everyone was stunned."
Earlier in the day, Britney made herself a target of parenting and child safety groups when she was photographed driving with her five-month old son, Sean Preston, on her lap. And today, a deputy from the Los Angeles County Sheriff's Department paid a visit to Spears' Malibu home in anticipation of a Department of Children and Family Services (DCFS) investigation into the incident, according to TMZ.com.
Source: Star Magazine