Paris Jackson Changed Her Last Name ... Marriage?

Paris Jackson has taken a new last name, raising some pretty obvious questions.

Michael Jackson's 17-year-old daughter just changed what appears to be her Instagram profile to Paris Jackson Castellaw.

Chester Castellaw is her boyfriend, an 18-year-old soccer player with Real So Cal.

There's no hyphen, but it still smells like she's saying she got married. Since she's a minor she'd have to get a sign off from her co-guardians ... either TJ Jackson or Katherine.