Dancing with the Stars: Susan Boyle, more flu and double the dancing this week

Things should get back to normal tonight on “Dancing with the Stars” with one elimination, but the five remaining couples will also each have two dances.

Who will have the flu? Who will be nervous? Who is gonna sing on Tuesday?

Well, we can answer one of those questions right away.

Everyone’s favorite Scottish singer (with the exception of the Bay City Rollers) Susan Boyle is set to sing on Tuesday's results show.

Boyle is expected to do a repeat of her best known performance, “I Dreamed A Dream” from “Les Mis,” to promote album of the same name that will be released later this month.

Boyle will sing while dancers Tony Dovolani and Chelsie Hightower take the floor to shake their stuff.

Will Boyle’s appearance on “Dancing with the Stars” mean a showdown with Sharon Osbourne?

Ozzy’s wife bashed Boyle recently on “The Opie & Anthony Show,” cruelly declaring that God hit the singer with an “ugly stick.”

Osbourne’s daughter Kelly is a contestant on “Dancing,” but reports say the famous rocker wife and “America’s Got Talent” judge will not be at Tuesday's show.

Luckily for us, Twitter gives fans an all-access pass behind-the-scenes of Dancing with the Stars, and with all the stars and professionals tweeting about their week.

First, it appears every couple will have one regular dance and one special themed dance that ties in with a particular time frame.

Aaron Carter and Karina Smirnoff will be dancing the foxtrot and samba. Aaron added that they will have a '90s theme, which seems appropriate since the '90s were all about boy bands.

The big problem could be Karina's health. We've already seen Derek Hough and Lacey Schwimmer sidelined due to the flu, and now Karina is infected. She Tweeted: "Wow, my flu is coming back. I'm coughing up a storm, body is aching, fever"

Since these two can wind up in the bottom even with a 29, any weakness could spell the end for this team.

It look as though Joanna Krupa and Derek Hough will be taking on the quickstep and a paso doble. These two have been on top for a while, but this week could be challenging.

Adding even more suspense is the possibility of Derek being out again. Joanna tweeted: "poor derek had some pain around his right thigh so am praying he's fine."

Mya and Dmitry Chaplin are going to dance the quickstep and a 1970s samba.

Kelly Osbourne and Louis van Amstel plan to take on the foxtrot and jive. Also, Louis tweeted that their costumes for the jive are going to be fun.

Donny Osmond and Kym Johnson will dance the Viennese waltz and a totally '80s paso doble.

According to Donny, their paso is inspired by glam rock. Is that a little bit country or a little bit rock 'n' roll?

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