Complex sentence: Gaga wore a silver and black short skirt like a tutu shaped like a peplum with a triangular piece set on her right breast and high heeled ultra spike shoes.
Split into simpler sentences: Gaga wore a silver and black short skirt looking like a tutu and shaped like a peplum. She had a triangular piece attached on the dress on her right breast, and completed her look with high heeled ultra spike shoes.