Rihanna hops out of an office building, which houses the Playboy headquarters, and arrives at her hotel in New York City on Friday (June 12).

The 21-year-old Bajan sexy beauty helped rally thousands of people back in February to register as a possible donor for Jasmina Anema, a 6-year-old New York City girl who received a life-saving bone marrow transplant. RiRi told People on Thursday, “I love this little girl and I am so happy that Jasmina received her transplant today. Miracles do happen. I hope more people sign up a Bone Marrow donors with DKMS so we can save more lives like hers. Jasmina remains in my prayers for a fast recovery!”