From PEOPLE Magazine Click to enlarge
When Rihanna flew into Manhattan on April 2 to visit 6-year-old Jasmina Anema at NYU Medical Center, the plan was to spend a quiet hour with the leukemia patient, who is awaiting a bone marrow transplant. But mix a mutual case of love-at-first-sight with a giggly dose of girls-just-want-to-have-fun, and before they knew it three hours had flown by. Rihanna, who arrived toting a gift bag of cosmetics, gave Jasmina a princess makeover and manicure. The little girl offered a homemade drawing of the R&B star, a tour of her toys—her stuffed dog Jackie, like Jasmina, has an IV line for chemotherapy treatments—and a performance of her best dance moves. "She is such a little diva!" says a smitten Rihanna. "It breaks my heart to see her go through this."

After learning of Jasmina's battle with NK-cell leukemia, Rihanna, 21, asked People.com readers to register with DKMS Americas, a bone marrow donor registry (dkmsamericas.org). Her February appeal drew some 4,000 new donors—but none matched Jasmina. Now Rihanna, spending time apart from Chris Brown, 19 (who pled not guilty April 6 to charges that he assaulted her), is seeking more donors. "As a little girl, I believed my mama's kisses made me get well," she says. "Instead of one kiss, Jasmina needs one perfect donor match."

This week's cover

On Newsstands Now!

Saved by the Bell Reunion

The hookups, the meltdowns, the memoires

The case reveals what was really going on what they think of each other now!

Get 4 FREE PREVIEW Issues! Click here now