The Aussie singer and TV star will be serenading his wife-to-be Emily MacDonagh with a medley of his own hits - including a special number he's written for her - at their wedding ceremony on 11 July.
The TV presenter will tie the knot with his doctor fiancée at Mamhead House in Exeter, South West England.
"Peter wants to make it a really personal affair. The song is very poignant and means a lot to him," a source told the Sun.
"He's also planning to perform some more uplifting tracks to get everyone in the mood to party."
Andre's 8-year-old daughter Princess and 10-year-old son Junior, both children with ex-wife Katie Price, will take part in the ceremony as flower girl and page boy.
The Mysterious Girl singer also has an 18-month-old daughter Amelia with fiancée Emily.
The wedding is reported to be a 'classy' affair – without any celebrity guests, no pink wedding gown or Cinderella horse and cart, which was part of his wedding to Katie Price.
The newly licensed doctor Emily will instead wear a lace frock by K Middy, which is said to be inspired by that of the Duchess of Cambridge. Andre's previous wedding to Price was sold to OK! magazine in a £1.75m deal. His second wedding photo rights went to the same magazine for £500,000.
Andre met Emily, a medical student who is 17 years his junior after he was treated for kidney stones by Emily's surgeon father Ruaraidh MacDonagh.
The Mirror reports that Emily's father will be taking care the majority of cost of the big day.