Rihanna has partnered with Twitter CEO Jack Dorsey, via her The Clara Lionel Foundation, to donate $15 million towards mental health services in the U.S.The 32-year-old Work singer’s pledge is a joint venture between her nonprofit 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