Braless Pixie Lott flashes her cleavage in a plunging black tuxedo dress

Pixie Lott cuts an elegant figure in a pale blue floral gown at the ITV Palooza

Pixie Lott puts on a busty display in a plunging leather mini dress

Pixie Lott wows in a plunging gown as she joins glamorous Amber Heard at glitzy fashion bash