Bret Contreras - How to Build Strong, Powerful Glutes and Increase Your Explosive Strength, Speed, and Athleticism. If Great Glutes are Your Goal, then You've Come to the Right Place. Master's Degree and Certified Strength and Conditioning Specialist Bret Contreras is Here to Show You the Best Exercises, Techniques, and Methods to Improve Your Physique and Boost Your Performance. Let the Glute Guy Elevate You to a New Level.