01/04/2008 AT 08:00 AM EST
Video courtesy CelebTVBritney Spears
remains hospitalized at Cedars-Sinai Medical Center, but here's the latest footage of the pop star late last night. Spears, 26, was taken to the hospital
strapped to a gurney shortly after midnight Friday morning after authorities had earlier arrived at the residence to intervene in a custody dispute between Spears and her ex-husband, Kevin Federline
, 29. Authorities believed that Spears was under the influence of an unknown substance.
Keep checking back to PEOPLE.com for more updates. (PHOTOS
: Britney in the ambulance
PHOTOS: See the latest pics from Britney Spears's troubled life.