Kate Beckinsale has literally been walking her two cats on a leash, in a bikini, and in sky-high stilettos. The "Underworld" actress proved mighty popular on her Instagram ahead of the weekend, posting an eye-catching photo that checked boxes for animal fun, plus the 47-year-old's jaw-dropping bikini body. Kate, already called "Benjamin Button" this year for looking half her age, was proving that age is, indeed, just a number. The star's 4.4 million followers also got a reminder that it's always off-beat with this Brit. Check it out below.