We'll take a guess and say that RiRi stayed in Mandarin's 2411-square foot Royal Suite, which comes fitted out with a wraparound balcony, private steam room and Bang & Olufsen sound systems. Now that we think about it, we'd be in a hurry too to get back to a place like that!
For all you curious luxury jetsetters, this suite isn't even listed on the reservations page. However, the Presidential Suite, which is two tiers below the Royal, goes for between £2,500 and £3,700, depending on the season, and also includes a private balcony, cocktail cabinet and floor-to-ceiling marble in the bathrooms.
But if it's the swank suite and the Rihanna lifestyle you want to emulate, a good place to start would be leaving the sinks running in your room. On second thought, don't do that. Kinda funny when you're a huge celebrity, probably just annoying when you're a regular old person.