The X Factor winner Alexandra Burke was left shaken after a furious row with her ex-boyfriend.
The singer was with producer pal Ben Adams when former beau Russell Brooks arrived at her plush north London apartment in the early hours of Wednesday (18Feb09) morning.
Brooks was reportedly furious when he discovered Adams at the property - and British tabloid the News of the World alleges he launched into a foul-mouthed tirade.
A source tells the newspaper, "Alex split up with Russell in September, just before things heated up with The X Factor. He certainly was not over her at the time and still isn't now.
"Hours before the incident, Alex had been talking to Russell on the phone. When she told him she'd been hanging out with Ben, he lost it."
Burke won the British TV talent show in December (08) and has since topped the U.K. charts with her cover version of Leonard Cohen's Hallelujah.