Fighting fit! Michael Jackson's son Blanket, 15, leaves Taekwondo class in Calabasas

He's said to be a straight-A student who attends martial arts class after school.

And Blanket Jackson, 15, was spotted dutifully attending his Taekwondo class on Wednesday.

The youngest son of Michael Jackson wore his white uniform as he left the class with a black duffel bag slung over his shoulder.

Blanket, now known as Bigi, has an older brother Prince Michael, 20, and older sister, Paris, 19.

The youngest Jackson shies away from the media spotlight unlike Paris who is now a regular on the red carpet and covered Vogue Australia last month.