The Australia's Got Talent semi-finals will come to an end this week as seven remaining acts go head-to-head for the last two spots in the finals. Who will get one step closer to the $250,00 grand prize?

There'll be a bit of everything on stage this week, including some spot on formations from the Black Diamonds Drill Dance team, some unique music skills courtesy of Byron Bay's unofficial ambassador Andy Holm and some stellar opera from Monique Le Bas. And young MCs 10 Days After Christmas have another crowd-pleasing original track ready to go.

Check out 10 Days After Christmas' audition below:

Kookies N Kream are looking to be the first dance crew to make it through to the finals this year. No strangers to hard work, these youngsters will be hoping their dedication pays off. Word on the street is their routine is well and truly off the hook!

The Nelson Twins will be bringing the laughs this week, and rumour has it that this comedic duo will be aiming some of their comedy rays directly at the three judges. Also getting right in on the action is host Grant Denyer. He has been roped in to assist mind reader Anthony Laye with his dangerous Russian roulette routine.

As if that wasn't enough action, special guest and 2011 finalist Timomatic will also take the stage!