The former 98 Degrees star is a co-owner in a farm which lawmakers have specially designated as a potential site for large-scale marijuana cultivation. Should the drug be legalised in a public vote on Tuesday (03Nov15), Lachey and his fellow investors, including designer Nanette Lepore and basketball icon Oscar Robertson, could make millions as their business will be just one of 10 farms in Ohio allowed to service the 1,100 state-sponsored pot dispensaries, according to The Washington Post.

Each plot of land will need further investment of around $10 million (£6.25 million) to set up the marijuana plants, but once the equipment is in place, the 10 farms are estimated to benefit from over $1 billion in pot sales each year, reports Fox News.

Lachey has been using social media to call on fellow Ohio residents to make their voices heard at the polls on Tuesday, and he claims his motivation for passing the law is the huge economic growth the legalised marijuana industry could bring to the state.

"Ohio is my home, and as a resident and local business owner I am proud to be part of a movement that has the potential to create jobs, reinvigorate the local economy and improve the safety of our communities," the father of two writes in a statement issued to "Passage of this proposal will result in much-needed economic development opportunities across Ohio, and update the state's position on marijuana in a smart and safe way."