Mariah Re-records 'Hero' & Gets A Milli

Mariah was in the studio (as seen below) re-recording her infamous 'Hero' putting some '09 flava on it. But let's just call it what it is -- Mariah isnt a young girl anymore and her voice has aged and gotten a bit deeper and sounds like shes compensating for those notes that she can't hit anymore.

Nevertheless, 'Hero' and her other famous hits like 'Always be my Baby' and 'One Sweet Day' will be included on Carey's first collection of classics entitled "The Ballads" for Sony Records due out Jan 20th.

In other news, Mariah snagged 'a milli' after agreeing to peform four songs at the Nikki Beach Club on the Caribbean Island of St. Barts where she spent New Years with hubby Nick and other A-listers.

Check the studio footage of Mariah below --