For a gorgeous back you must strengthen your rear shoulder muscles. Straddle and lean on an incline bench. Hold 5-8 lb. dumbbells in front of you PALMS FACING OUT (A). While exhaling, navel pinned to spine, arms straight, bring weights up parallel to your shoulders, thumbs toward ceiling (B). Here's the key: as you bring your arms up squeeze together the muscles of your upper middle back and hold the contraction for a count of 3. Inhale as you lower down. Repeat for 4 sets of 10 reps.