Namsini's real name is Joe Namsinh. He is a professional celebrity artist and magician for over 25 years. He is a member of The Magic Castle in Hollywood, CA. 
Namsini's audition in Episode 1105 consisted of demonstrating sleight-of-hand tricks with playing cards. Simon Cowell buzzed the act. Simon and one other judge voted "No", eliminating Namsini from the competition.