Question: What is the name of the American hamburger restaurant described as a "breastaurant", which features skimpily-clad female wait staff, known for serving high-calorie menu items, located in Downtown Las Vegas after it moved from Tempe, Arizona?
Sentence (from "Heart Attack Grill"): The Heart Attack Grill is an American hamburger restaurant in Downtown Las Vegas, Nevada (formerly located in Tempe, Arizona).
Relevant evidence: Yes