“Mannequin” by Britney Spears debuts at #99 in So Casual 100™.

So Casual 100™: #99(re) Mannequin, Britney Spears [1 weeks]. *new peak*

Tracks from ‘Circus (Deluxe Version)’ by Britney Spears rise in So Casual 100™ this week.

#9 (+80): Womanizer #91 (RE): Circus #92 (NEW): Out from Under #93 (NEW): Kill the Lights #94 (NEW): Shattered Glass #95 (RE): If U Seek Amy #96 (NEW): Unusual You #97 (NEW): Blur #98 (NEW): Mmm Papi #99 (NEW): Mannequin #100 (NEW): Lace and Leather