Rozonda 'Chilli' Thomas and Tionne 'T-Boz' Watkins say TLC's new album will help keep the memory of Lisa 'Left Eye' Lopes alive.

The group's fourth album, which was half-finished when Lopes died in a car crash in Honduras in April, will be released on Tuesday.

Thomas and Watkins have said '3D' will serve as a celebration of Lopes' life.

The two will not replace Lopes, but will continue working as a duo.