How did eagle-eyed fans solve a months-old mystery? It took some detective work, work, work, work, work! No one knew why Rihanna and Naomi Campbell had unfollowed each other on Instagram. That is, until the identity of RiRi’s new mystery man was revealed. On June 26 in Spain, the pop star was caught in a clinch with Toyota heir Hassan Jameel, the very same Saudi businessman Naomi was linked to in London last year.