Rihanna took a break from touring to hit the beach in Rio de Janeiro on Sunday. Rihanna slipped on a printed bikini for the outing and showed off a new henna tattoo on her left arm. She was joined by friends, though once other beachgoers spotted the singer on the sand, she had to quickly escape the swarms of people and return to her hotel. She was safely back in the spotlight on Monday, though, when she waved to fans from the balcony of her room. Rihanna has a few more days to soak up the sun in Brazil before she heads to the UK to continue performing, but first she'll release her latest single, "We Found Love," tomorrow.