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"Best karaoke ever? Jimmy Fallon finished out his first week as host of The Tonight Show on a high note -- literally. The TV personality&amp;apos;s pal Justin Timberlake made an appearance Friday night, and the pair performed their fifth installment of &amp;quot;History of Rap 5.&amp;quot;\r\nPHOTOS: Best-dressed TV hosts \r\nFallon, 39, and Timberlake, 33, surprised the audience as the friends slowly revealed microphones that were hidden behind Fallon&amp;apos;s desk. They quickly made their way to the floor and belted out tunes to the screaming crowd for five minutes. The medley included hits from Salt-N-Pepa, LL Cool J, Beastie Boys, and Jay Z. They also rocked out to the Fresh Prince of Bel Air theme song and finished out with Run DMC&amp;apos;s &amp;quot;Walk This Way.&amp;quot;\r\n\r\n\r\nThe &amp;quot;Suit &amp;amp; Tie&amp;quot; entertainer has been under the weather as of late, but didn&amp;apos;t show any signs during the segment. He tweeted on Friday 19 that he had to postpone his show at Madison Square Garden in NYC &amp;quot;due to health reasons.&amp;quot;\r\n\r\nTimberlake previously reunited with Fallon when the comedian hosted Saturday Night Live in late December.\r\nWatch the video above!"^^<http://www.w3.org/2001/XMLSchema#string>
<http://www.usmagazine.com/entertainment/news/jimmy-fallon-justin-timberlake-perform-history-of-rap-5-on-the-tonight-show-video-2014222>