Rihanna has partnered with Twitter CEO Jack Dorsey to donate $15 million (£12 million) towards mental health services in the U.S.The Work singer's pledge is a joint venture between her nonprofit, The Clara Lionel Foundation, and the social media mogul's #StartSmall initiative, and will help fund mental health services amid the ongoing social unrest and the coronavirus pandemic.In a statement, representatives from The Clara Lionel Foundation said: "Racial injustices perpetrated by systems built to keep people safe are exacerbating the coronavirus’s mental health impact on individuals and families across the United States."Even as the majority of states have begun lifting restrictions in recent days, millions of Americans continue to face.