Wow is she really facing the Backstreet Boys but whatever there is basically no competition. Britney will sell 600 K because there are still fans out there that support her
When "Incomplete" was a decent hit, BSB managed a 240k debut.
Now that "Inconsolable" has completely tanked - they'd be lucky to get 100-150k.
I must admit. Predicting the first week sales of Britney's album is extremely tough. I would put it anywhere in the range of 200-550k. Broad? Yeah. Cos it's too hard to call!