My account was hacked, the previous message that was sent to you will take you to a fake gmail login. If you enter your password into that login, it will hack your account and send a similar messages to all of your contacts (a.k.a. everyone who you have ever emailed or gotten email from). DO NOT FOLLOW THAT LINK. Just delete the message.
Please note that this is a mass email (I bcc'd everyone that the hacker sent an email to).