How do you connect your Dr dre beats to your iPhone?

I'm guessing that you're talking about Beats by Dr. Dre Wireless headphones.

Step 1. Turn on your headphones

Step 2. On your iphone go to Settings > General > Bluetooth

Step 3. Turn Bluetooth on

Step 4. You should see it say "Beats Wireless Not Connected"

Step 5. Click on"Beats Wireless Not Connected" and it will connect