READ MORE:
• New Zealand and 11 countries strike Pacific trade pact
• TPP 'great for NZ' claims John Key
• TPP: Here's what the world is saying
• Explainer: What is the TPP?
While the deal pledges to benefit all signatories, many are sceptical that it will benefit New Zealand.
The Kiwi-born singer based in Australia prompted his 144,000 followers to "read up" and "study" the affects the trade deal will have on Kiwis living in New Zealander and abroad.
"I choose my people, my land & the well being of our whenua & generations to come... What will you choose?," he said.
Walker addressed the immediacy of the situation, urging his followers to have their say.
"The TPPA undermines New Zealand's sovereignty and is a threat to our democracy. National has overestimated the benefits to New Zealand and negotiated it in secrecy," he wrote.
His post touches on legislation surrounding the deal, including policy changes that could effect New Zealand businesses and the property market.
"Under the TPPA: Our Parliament would not be allowed to ban overseas speculators from buying up Kiwi homes. Other countries, including Australia, negotiated an exemption from this clause but National failed to do so for New Zealand.
"Foreign corporations could sue the government over policy changes seen as affecting their businesses.
"New Zealanders' access to life-saving drugs could be restricted as our laws are tilted in favour of US pharmaceutical companies."
Stan Walker is one of a string of celebrities speaking out against the TPP deal, others include rugby players Piri Weepu and Liam Messam.
