Absolutely! You can change your email address by following these instructions:
- Tap the menu (from top left corner)
- Then tap on "My account"
- Next, click on the existing email under Login Credentials section
- Enter the new email address you want (re-enter new email again) and press Done (or click the check mark) to apply the changes
And it will save your new email address!
If you get an error message, it's because all email addresses must be unique, you may already have an account with that email address... You will need to change it to a different one.