Multi-tasking Kim Kardashian promotes her Skechers trainers as she hits the gym

By DAILY MAIL REPORTER Work-out queen: Heading to a Studio City gym today, Kim Kardashian managed to do a spot of celebrity endorsing by slipping on her 'Shape-up' Skechers sneakers She was spotted eating a hearty meal of a burger, fries and a muffin earlier this week. So it comes as no surprise that Kim Kardashian was eager to work off her calorie intake shortly after.Heading to a Studio City