London, Mar 8 (ANI): Lily Allen smoked a cigarette onstage, even though she was suffering from a chest infection. Disregarding the smoking ban, the 'Smile' hitmaker lit up at the MEN Arena in Manchester. However, she apologized to the crowd for off key vocals. "I've got a bout of bronchitis so sorry if my singing's a bit s**t. Not that it's any good anyway," the Daily Star quoted