7 Feb 2009 - Lily Allen has announced a new set of American tour dates. The Smile singer is set to play 15 gigs, starting in San Diego on April 1st. Last year, in August the english singer only got so far at Los Angeles airport after her US working visa was revoked. Lily had to undergo regular health checks to make sure she wasn't on drugs so that she could be granted a US work permit after cannabis was found on her tour bus in Canada. The star commented on her MySpace page: “So, they let me in. Hello America, it's nice to be back. Immigration was funny; they only kept me for an hour or so.”