Music Florence Welch on Singing in Front of Kanye By Raphael Chestang 3:50 PM PDT, April 30, 2012 ET exclusively chatted with Florence Welch of Florence and the Machine at a concert at Cosmopolitan Hotel Las Vegas, where she opened up about her recent Unplugged performance attended by Kanye West.VIDEO: Florence Welch 'Freaked Out' By Her Success"It did make me quite nervous, especially as he was right there as I walked out," said Florence. "He's a real hero of mine. His music is incredible, so it was a real honor to have him there."Although Kanye had expressed interest in watching the taping during a photo shoot the two had together, Florence admitted she was surprised to actually see him there.The singer went on to describe the peculiarities of her show that night, describing it as "surreal" to perform in the desert city.VIDEO: Florence Welch Backstage at Dancing with the Stars"It was amazing, performing and seeing all of the casinos," said Florence. "It was intense."Following the "intense" concert was the afterparty hosted by MSN at the Marquee, where Florence wound down enjoying drinks with friends.Florence and the Machine: MTV Unplugged premiered April 8 and has subsequently been made available for digital purchase via iTunes. For more on Florence go to MSN.com.