WATCH: Britney Spears Rehearses for Vegas Show

<object id="flashobject" type="application/x-shockwave-flash" allowScriptAccess="always" allowFullScreen="true" allowNetworking="all" height="272" width="431" data="http://www.etonline.com/media/flash/unicorn/UMInterface.swf"><param name="quality" value="high" /><param name="allowScriptAccess" value="always" /><param name="allowFullScreen" value="true" /><param name="allowNetworking" value="all" /><param name="movie" value="http://www.etonline.com/media/flash/unicorn/UMInterface.swf" /><param name="flashvars" value="config=http://r.unicornmedia.com/embed/a6fdbad9-2126-43f2-a153-2022e29f437b?view=fkey%26view_id=109418&fwAdServer=http://2839.v.fwmrm.net/ad/p/1&fwProfile=cbstd_unicorn&fwAdNetworkID=10297&fwSiteSection=etonlinemain&fwSiteSectionNetworkID=10297&fwVideoAssetNetworkID=10297&fwAdManagerSWF=http://adm.fwmrm.net/p/cbstd_as3_live/AdManager.swf&fwVideoAssetID=109418-et_britney_spears_clip_110404&admode=fw&AllowDOMScan=1" /></object>

It's been a week and a half since Britney Spears thrilled fans with a surprise Las Vegas show, and MTV was behind the scenes as she rehearsed for the big event.

The network premiered "Britney Spears: I Am the Femme Fatale" on Sunday night, giving fans an intimate look into the pop star's life as she listened to her new single with Will.i.am, filmed her new music video, and prepared for her Las Vegas show.

Watch to see Britney and her dancers work out the moves for her big night.

You can catch a reprise of the full-length special Tuesday night on MTV, or you can watch it anytime at MTV.com. Britney's seventh studio album, Femme Fatale, is in stores now.