"We first approached Lydia to see if she would like to participate in the tournament as one of our invited celebrities pre-Christmas," Hart said. "We are delighted this tournament now will form part of her hectic schedule over the next few months.
"Her recent outstanding successes in Australia show she is undoubtedly one of New Zealand's most exciting young athletes. This tournament will be a rare opportunity for the New Zealand public to watch her in action."
Ko last year became the first recipient of the Mark H. McCormack Medal, awarded to the top-ranked golfer on the newly-established women's amateur golf ranking.
Despite her busy schedule, she jumped at the chance to play at The Hills.
"Like last year, this year has been one of many firsts, and I haven't had a minute to have a breath, however this event will be a more relaxing one for me," she said. "2012 has been amazing so far, so this week will be real fun for [coach] Guy [Wilson] and me."
Ten-time US PGA Tour winner David Frost from South Africa is among the professionals who will play alongside New Zealanders Phil Tataurangi, David Smail, Mark Brown, Michael Hendry and Gareth Paddison.