35-year-old Australian Kristian Anderson, who has been having chemotherapy since being diagnosed with bowel cancer in October last year, was put in touch with Jackman after he appealed to radio station Triple M for their help in making a birthday video for his wife Rachel.
In the video, which has been posted on News.com.au, Kristian tells his wife that he will "never give up" during his cancer battle and that he needs her "like [he] needs a cure for cancer".
Halfway through the movie, Jackman appears and says: "He loves you Rachel... he loves you."
New Zealand Prime Minister John Key is also featured in the video which raises cancer awareness and encourages people to donate money to the Cancer Council.
