Katy Perry CDs inspected in Australia over biosecurity fears
The seeds in the deluxe edition of 'Prism' could pose a risk to the country's agriculture
The deluxe version of the singer's fourth album 'Prism' contains a seed paper, which fans are encouraged to plant and "spread the light".
While manufacturers have assured the Australian Department of Agriculture that the Australian version of the album contains locally sourced daisy seeds, international versions of the album still pose a risk, News Limited reports.
"Seeds or plant material of international origin may be a weed not present in Australia or the host of a plant pathogen of biosecurity concern," a department spokesperson said.
"The Australian Government has a strong system in place to detect and respond to material of biosecurity concern. This includes the inspection of mail, cargo and baggage."
It was also revealed today that Katy Perry has overtaken Justin Bieber as the most-followed person on Twitter.
Perry now has over 46.5 million followers on the social network compared with Bieber's 46.49 million, ending his nine-month stint as the site's most popular user.
Lady Gaga is the third most followed person on Twitter with 40.4 million followers. She spent three years as the biggest star on the site before Bieber overtook her in January.
US president Barack Obama is the fourth most popular user on the site with 39.27 million followers, ahead of Taylor Swift's 36.25 million.