Sir Keir Starmer has teased Sir Ed Davey, as the Liberal Democrat leader vies for a Christmas No1 spot with his charity single, Love Is Enough, sung with the Bath Philharmonia's Young Carers' Choir. The prime minister said, "my family was surprised to see the honorable gentleman shamelessly plugging his song" on the steps of No 10 Downing Street. Starmer jokingly added, "we have strict rules against anti-social behaviour". Report by Brooksl. Like us on Facebook at http://www.facebook.com/itn and follow us on Twitter at http://twitter.com/itn