Razorlight frontman JOHNNY BORRELL has reportedly cheated on new girlfriend Kirsten Dunst after passionately kissing his ex-girlfriend. Fabiola Gatti, who dated the British rocker until he met the Hollywood actress, claims the pair shared a steamy clinch after meeting up recently, and insists that the musician promised to ditch Dunst to re-kindle their relationship. The stunning Uruguayan singer says, "I was recording some solo stuff so I was on my own in the studio when he popped in. When the air was cleared between us and I knew what the situation was he just leant in and kissed me. "He told me he would break up with her to go back out with me. We've been on and off for years." The pretty 20-year-old, who fronts cult group FABS, is adamant that the pair will get back together in the future. "We will always be soulmates. At the moment we know it won't work but one day we will get back together." Dunst and Borrell have been dating since meeting at his Los Angeles gig on 9 March (07).