The twelfth season of Dancing with the Stars premiered on 15 April 2012, at the 6:30pm time slot on Channel Seven. With previous co-host Sonia Kruger defecting to Channel Nine, former Spice Girl and American Dancing with the Stars season 5 runner up Mel B was hired as her replacement. Daniel MacPherson continues his role as main host of the show, along with judges Todd McKenney, Helen Richey, and Joshua Horner.
The cast for the season were revealed on 13 March 2012 via the Seven website, along with their professional partners, although four contestants were revealed in late February 2012. This cast has been seen as a star increase on the previous year's cast, particularly with the addition of new international co-host Mel B, and former Nine daytime talkshow host Kerri-Anne Kennerley. Six new professional dancers, including former American Dancing with the Stars professional Damian Whitewood, Christopher Page, Elena Samodanova, Jess Prince, Gleb Savchenko and Damien Samuel have been recruited to replace non-returning professional dancers Alana Patience, Brendon Midson, Arsen Kishishian, Masha Belash, Jade Brand and Mark Hodge.
This season featured eleven celebrities.
The highest score each week is indicated in with a dagger (), while the lowest score each week is indicated in with a double-dagger ().
Color key:
Unless indicated otherwise, individual judges scores in the chart below (given in parentheses) are listed in this order from left to right: Todd McKenney, Helen Richey, Joshua Horner.
Couples performed either the cha-cha-cha or the Viennese waltz, and are listed in the order they performed.
Couples performed either the foxtrot or the jive, and are listed in the order they performed.
Couples are listed in the order they performed.
Couples are listed in the order they performed.
Couples are listed in the order they performed.
Couples are listed in the order they performed.
Couples are listed in the order they performed.
Couples are listed in the order they performed.
Each couple performed two unlearned dances, one of which was the Argentine tango. Couples are listed in the order they performed.
Couples are listed in the order they performed.