If Lindsay Lohan had an affair with DJ Samantha Ronson, as the always accurate Star is claiming, then she must be over it already. Sources report that the actress, who appears on Radar's forthcoming June cover, set her sights firmly on keyboardist/guitarist James Righton of Brit-pop buzz band Klaxons at the Coachella music festival this weekend—which she attended along with Ronson's brother, DJ Mark Ronson.

Witnesses say Lohan got touchy feely with Righton on Sunday, enlisting the help of her bodyguard to attract the rocker's attention. The bouncer told Righton that Lohan wanted to "say goodbye," and as Righton was inside the club schmoozing with fans, La Lohan sat patiently outside puffing cigarettes, and finally left—alone. In a last ditch effort, she barraged the rocker with late-night text messages, witnesses say. "She looked like a woman on a mission," one onlooker tells Radar. "And that mission was a Klaxon."

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