Child Stars

'Honey Boo Boo' star Kaitlyn Cardwell is healthy and recovering after surgery to remove an extra thumb.

Kaitlyn -- Mama June's 4-year-old granddaughter -- was born while the show was still on-air ... and her extra digit became a big topic of conversation. Kaitlyn's mom, Anna, tells us she made the decision to have the thumb removed to thwart medical issues and bullying.

Kaitlyn will wear a cast for 6 weeks ... but it's definitely worth it.

It could have an adverse effect on her cheese ball intake ... just ask Honey Boo Boo.

Disney star Michael Galeota's history of high blood pressure led to heart disease at just 31 ... this according to the death certificate.

The

-- obtained by TMZ -- shows the actor's cause of death was atherosclerosis heart disease ... a build-up of plaque that clogs the artery wall. Hypertension is also listed as a significant factor.

TMZ broke the story ... Michael died back in January and was discovered lying unconscious in his living room. He'd been battling high cholesterol and diverticulitis -- inflammation of the digestive tract.

The death certificate confirms the star of "The Jersey" on the Disney Channel died of natural causes.

Bug Hall -- best known as Alfalfa from the '90s version of "The Little Rascals" -- says his iconic hairdo wasn't just for looks ... it was the ultimate closer with the ladies.

Hall was in NYC promoting Discovery's new show, "Harley and the Davidsons." Naturally we talked motorcycles and stuff, but it got really interesting when we asked a not-so-innocent question about his post 'Rascals' love life. WHO KNEW???

Also, check out Bug's pipes in this clip. Darla would be proud.

"The Wonder Years" star Jason Hervey just learned the hard way ... never take Ambien before you get behind the wheel.

Tennessee law enforcement tells TMZ ... they got a call about a swerving pickup truck and were able to locate it. Cops say Hervey was behind the wheel and totally out of it ... slurring, red-eyed and confused.

Cops say Hervey miserably failed a field sobriety test. They searched the pickup and found a loaded handgun, but the actor had a permit. Hervey was booked for DUI and carrying a weapon while under the influence.

The incident went down back in January 2015 but it went unnoticed, until this past weekend when Hervey served 48 hours behind bars for a misdemeanor DUI charge. The weapons charge was dropped.

Jason, who played Wayne Arnold on the show, tells us he has a prescription for Ambien and stupidly took one before hopping in the truck for a quick errand, he had no alcohol in his system ... he's thankful cops got him off the road before anything really bad happened.

Joe Jonas got some nourishment as he DJ'd up a storm at 1Oak Saturday night, courtesy of some Ninja Turtles.

The turtles carted in some pizza pies for the VMA event. Donatello was chatty after making the delivery. He was mum on the tip.