Idol Scoop: Haley Reinhart 'Rehearsing' as Possible Sub for Ailing Lauren Alaina

American Idol‘s presumed third-place finisher Haley Reinhart “is rehearsing right now” as a possible substitute for finalist Lauren Alaina, a source close to the show tells TVLine.com. Alaina, who lost her voice earlier today, says the show insider, is receiving “medical attention” in an attempt to take the stage for tonight’s performance finale, which will air in less than 45 minutes on Fox. Reports of Lauren’s illness first broke on TMZ.com.

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Within the last 30 minutes, American Idol‘s official Twitter feed sent out a photo of Alaina and fellow Top 2 contestant Scotty McCreery getting their hair and makeup done for tonight’s show.

The story is developing…

UPDATE: Ryan Seacrest’s latest Tweet points to the likelihood that Lauren’s show will go on: “Let’s get these trending – are you #teamlauren or #teamscotty? #idolfinale”