Cheryl, Nicola, Kimberley and Nadine lead tributes to their bandmate, who died from cancer aged 39.
Sunil Perera was the frontman of The Gypsies - Sri Lanka's biggest musical franchise.
Artists should swap private jets for trains among recommendations from climate scientists.
Sales of business cards have fallen sharply as a result of the pandemic.
The singer, who announced she had breast cancer in August 2020, has died at the age of 39.
From Popstars: The Rivals to chart-topping, award-winning success and a Celebrity Big Brother win.
Her mother describes the singer, who had breast cancer, as a "bright, shining star".
The late singer was an irrepressible and immensely likeable pop star with a "wild child" reputation.
Wolf Hall author Hilary Mantel says modern political figures don't match up to past ones.
There's been a glut of shows featuring stunning scenery, simple lifestyles and down-to-earth people.