Guessing Who? Blanket is 13 Years Already !

It’s hard to believe that Michael Jackson’s son Blanket — whom the singer notoriously dangled over the balcony of a hotel — is already 13-years-old!

The teen (real name Prince Michael Jackson II) is making headlines after he appeared in a yearbook — which can be seen on Radar Online — with his fellow seventh graders after completing a year at The Buckley School in Sherman Oaks, Calif.!

Michael Jackson with Baby Blanket in Germany

Prior to his enrollment at the competitive private school, MJ’s son was homeschooled, but according to a school insider, the teen — who goes by “Bigi” at school — has matriculated well!

He’s “a very good student,” the source tells Radar Online.

RELATED: Prince Jackson Is a High School Graduate!

“He is definitely the opposite of Paris and Prince and he is more on the quiet side,” the source says of his siblings.

“Michael would be proud of Blanket. He is really sweet, funny and helpful.”

MJ's Three Kids