Christina Aguilera
Sheryl Crow
Source: http://beautyaddictmag.com/forum/viewtopic.php?t=2800&sid=a2f92674edd2b3567def80c2eb61f108
Source: http://forums.superiorpics.com/ubbthreads/showflat.php/Cat/0/Number/1254058/an/0/page/0#1254058
http://www.gossiprocks.com/forum/latest-photos/42076-christina-aguilera-back-basics-tour-wrap-party-cameo-05-05-07-a.html
