Hollywood actress Jessica Biel is causing controversy after she appeared to come out against child vaccinations.

The wife of singer Justin Timberlake appeared at the California State assembly this alongside prominent anti-vaccinations Robert Kennedy Junior, with the pair joining forces to lobby against a bill that would limit exemptions from vaccinations.

Biel appeared on Kennedy Jr’s Instagram as he applauded her for her campaigning work: “Please say thank you to the courageous @jessicabiel for a busy and productive day at the California State House,” he wrote.

The Daily Beast has gone on to report Biel & Kennedy are lobbying against SB 276, a state bill that “limits medical exemptions from vaccinations without a public health official’s prior approval”.

Kennedy has told the website that if the bill passed, , the bill would force doctors to vaccinate children even if the children had been determined to be “too fragile to receive vaccinations”.

Want more? Listen to this best bit from Jonesy & Amanda!