Some critics claimed Katy Perry's new album was hazardous to the ears, but Australian officials have dubbed Prism a genuine "bio-security concern".
The Department of Agriculture believes that seed paper [which grows when planted] given away with a deluxe version of the album could pose a risk to the country, with security officers ordered to inspect new copies from overseas.
Currently sitting at the summit of the Australian album chart, the Roar singer encouraged her fans to plant the seeds and "spread the light" via her Twitter page, now the most followed in the world after she overtook Justin Bieber at the weekend.
Strict custom laws mean that copies of Prism arriving from abroad could be confiscated by border control, as plant materials from outside the country must be thoroughly assessed before entry.
The Australian release contains Swan River daisy seeds that are considered harmless, but fans are still able to purchase international copies online.
