'Dancing With the Stars' preview: Heart and Kylie Minogue show up for rock week

The seven remaining "Dancing With the Stars" contestants face their greatest endurance challenge yet during Rock Week -- tackling two routines, including a mini dance marathon. But at least they'll get to catch two impressive acts on the Oct. 26 results program.

ABC confirms that both '80s rock band Heart and Australian pop star Kylie Minogue will both make appearances on the episode, before the show whittles the stars down to just half of the original cast.

So what classic can we expect to hear from Heart? "DWTS" pros Chelsie Hightower, Damian Holbrook, Derek Hough, Peta Murgatroydare, Karina Smirnoff and Louis Van Amstel will do an interpretive dance to a live performance of "Barracuda."

And as for Ms. Minogue, the singer is scheduled to sing the latest single off her album "Aphrodite," "Get Outta My Way."

Oh, and if you're at all intrigued about Rock Week's custom staging, host Tom Bergeron snapped a photo of it, and it's giving him Hollywood Squares deja vu.

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Photo credit: Getty Images; YFrog