According to HitsDailyDouble.com, Mariah Carey’s new album ‘E=MC2′ is on pace for first week sales of 475,000 based on one day sales, a career best opening week for the diva. The figure will be enough to easily best the projected runner-up Leona Lewis, who is on pace for 90,000 units after debuting at #1 last week with ‘Spirit’.