Record producer Mark Ronson denies he has fallen out with singer Lily Allen - despite her not returning any of his phone calls. The pair worked together on a successful cover of the Kaiser Chiefs' Oh My God in 2007 and Ronson is desperate to get in touch with the Smile star. Allen has failed to get back in touch with the producer - but Ronson is adamant the two are still friends. The 32-year old says, "Lily hasn't fallen out with me but I called her and she didn't call back. "She's working on a record. I've not spoken to her for a while." Allen, 22, suffered a miscarriage earlier this month (Jan08) after announcing she was expecting her first child with boyfriend, 37-year-old Chemical Brothers' star Ed Simons.