Rumours that pop star Rihanna is desperate to get married have been rife in recent weeks, but the ‘Umbrella’ singer says she isn’t rushing to walk down the aisle. Sources say Rihanna has had weddings on the brain while helping gal pal Katy Perry plan her nuptials, and is now hoping for boyfriend Matt Kemp to propose, sooner rather than later. But Rihanna, who has been dating the baseball player for eight months, says otherwise. “There are no plans – I’m only 22!” she exclaims. “I’ve heard the word ‘marriage’ 400 times in the past few days, but, no, I’m not ready for that yet.”