British singer Vera Lynn, the "forces sweetheart" who helped keep up morale during World War II, celebrated her 97th birthday on Thursday with the announcement of a new album of re-mastered songs.

The album will include more than 40 songs from 1940-45, including her wartime anthem "We'll Meet Again", and some unreleased tracks uncovered by her daughter Virginia.

It will be released on June 2 to coincide with the 70th anniversary of the D-Day landings four days later.

A previous compilation in 2009, timed for the anniversary of the outbreak of World War II, reached number one, making Lynn, then 92, the oldest living singer to top the British album charts.AFP