Tom Hanks' son Chet posted an Instagram video pretending to encourage people to have a COVID vaccine - only to then launch into an anti-vaxxer rant.  

Chet - whose dad and actress mom Rita Wilson were the first big stars to catch the virus in March 2020 - posted a video, captioned 'super important PSA,' in which he addressed the ongoing pandemic. 

He began by encouraging his followers to take action by getting the vaccine, only to quickly change his tone.

'I suggest to all my followers, you guys, set an appointment and get the vaccine first thing -- PSYCH!' he said. 'B***h! If it ain't broke don't fix it! I never had COVID. Y'ain't sticking me with that motherf***ing needle!'

The video began with Hank saying that Americans needed to rally together to curb the spread of the virus, especially with the Delta variant on the rise.

'I've been on the fence about this for awhile, that's why I never spoke on it, but with the amount of people I know recently that have gotten COVID, and with the numbers rising, I think it's important for me to say I got the vaccine, I think everybody should,' Hanks said in a convincing tone. 'It's really important that we all do this.'

However, about halfway through the video Hanks revealed that he believed the pandemic was a hoax, calling COVID-19 'the motherf***ing flu'.

The musician argued that Americans need to 'get over it and told those who were sick or high-risk to 'stay inside'.