How can I join YouTube Red membership

Start your YouTube Red membershipFrom youtube.com

1. Visit youtube.com/red on your computer or mobile web browser.
2. Click Start free trial to begin the purchase process.
3. Select the payment method you wish to use or add a new payment method (Note that gift cards and Wallet balances are not accepted for subscriptions).
4. Click Buy to complete the transaction.

From the YouTube app

1. Open the YouTube app on your phone or tablet.
2. Go to Account .
3. Scroll down and tap YouTube Red.
4. Tap Start free trial to sign up.
5. Follow the prompts to complete the purchase process​.

Source: https://support.google.com/youtube