Nice tramp stamp Cheryl! Ms Cole shows off her new tattoo in a backless dress at the NTAs as she masks disappointment over missing out on US X Factor

By SARAH BULL Front and back: Cheryl Cole appeared to have chosen her black dress specifically with the intention of showing off the huge tattoo across her lower back at the National Television Awards- She put on a brave face after discovering she is unlikely to be offered a role on American X Factor- But smiles all round as X Factor takes home Best Talent Show awardShe's the nation's sweethear...