Barbell Drag Curl
1) Stand tall with the chest up, core tight, head neutral and back flat.
2) Grab the bar with the palms facing up (underhand grip).
1) Keep the barbell close to your body as you drag it up towards your shoulders. As you do this, the elbows will point behind you.
2) Pause at the top. Now, slowly lower it back down to the starting position.