Lizzo‘s going down to “South Park” to have herself a time … dressing up as the Ozempic alternative named after her for Halloween — months after cracking up over the viral episode.

The singer-songwriter posted photos of her Halloween costume this year … a box of “Lizzo” from the hit adult animated show — with a measuring tape cinched around her waist like a belt.

She added advertising slogans to the background … saying Lizzo is a great way to lose guilt and gain confidence.

Remember, when “South Park: The End of Obestiy” dropped in May, fans were blown away by the jokes made about Lizzo — where basically characters in the show said they didn’t care about their weight, like Lizzo, instead of taking drugs.

Lizzo reacted to the scene on social media … taking the joke in stride and seemingly laughing it off — so, no harm, no foul.

That said, Lizzo recently showed off her own weight loss in a wild reveal video … and, she’s been hitting the gym hard in the months since the show came out.

She says she looks great either way — before or after the weight loss — so, she’s probably saying people don’t need to take any Lizzo if they don’t wanna!