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"Slave for Britney Spears! Nicole Richie joined the pop singer on stage during her Tuesday, Feb. 18 concert at Las Vegas&amp;apos; Planet Hollywood. The 32-year-old fashion designer, and Spears superfan, was pulled up on stage during a raunchy performance of the singer&amp;apos;s &amp;quot;Freak Show.&amp;quot;\r\n\r\nRichie shared photos on Instagram from the wild night that included her crawling like a dog on stage while Spears walked her on a leash. In one snapshot, Richie gives Spears, 32, a big hug while surrounded by her scantily-clad male backup dancers. She captioned the embrace: &amp;quot;#GOODBYE.&amp;quot; In a second picture, Richie is seen laughing while holding up a large T-shirt with Spears&amp;apos; face on it.\r\n\r\n\r\n&amp;quot;Can we all give a round of applause to @NicoleRichie for playing along in the show tonight?&amp;quot; Spears tweeted early in the morning on Feb. 19. &amp;quot;U looked hot crawling on all fours.&amp;quot;\r\nThe &amp;quot;I&amp;apos;m a Slave 4 U&amp;quot; singer also tweeted Richie directly: &amp;quot;@NicoleRichie Thanks for dancing tonight! xoxox.&amp;quot; Richie replied back: &amp;quot;Am I alive?&amp;quot;\r\n\r\nThis isn&amp;apos;t the first time Spears had made a celebrity join her on stage and crawl on all fours. Mario Lopez and Lance Bass had the honor last year, as well as Spears&amp;apos; boyfriend David Lucado."^^<http://www.w3.org/2001/XMLSchema#string>
<http://www.usmagazine.com/entertainment/news/nicole-richie-hugs-britney-spears-crawls-on-all-fours-during-concert-pictures-2014192>