Heidi shows off her assets while rehearsing her dance routine

Heidi Montag shows off her assets while rehearsing her Miss Universe Beauty Pageant dance routine for her single Body Language, Los Angeles.

The 22-year-old Hills star told People, "I am so excited to perform at Miss Universe for my first ever live performance. This is such a miracle in life and I give thanks to God everyday for this once in a lifetime opportunity!"