CHICAGO (CBS) — The children of the late pop icon Michael Jackson took a trip to Gurnee yesterday, spending the day at Six Flags.

Six Flags Great America released a picture of Blanket (10), Prince (15) and Paris (14). The kids hit the park with their new co-guardian, TJ Jackson, and other family and friends.

Prince and Paris rode most of the big-time rides, including Raging Bull, X-Flight and Superman, said Six Flags spokesman Katy Enrique. Blanket spent time riding go carts and he rode some of the more of the family rides.

Enrique said some fans recognized the children and the trio was happy to stop and take pictures with others in the park.

Michael Jackson died of cardiac arrest in June of 2009 after overdosing on the powerful anesthetic propofol.

The Jackson children are in the area to take part in celebrations this week in Gary, Ind., to mark the King of Pop’s 54th birthday, which is Wednesday.

Michael Jackson’s children, Blanket (second from left), Prince (fourth from left) and Paris (third from right) spend a day at Great America. (Credit: Six Flags Great America