Samuel "Sam" Tsui is an American singer/songwriter and video producer. He rose to fame as an Youtube celebrity and is known for covering songs by popular ar$sts like Adele, Britney Spears, Taylor Swift', Justin Timberlake and Bruno Mars, as well as some original songs, medleys, and mashups, along with his frequent collabora$ons with fellow YouTuber Kurt Hugo Schneider. As of June 22, 2016, Tsui had reached 2.5 million subscribers. He also does Cappella. He has done the cappella version for the song PILLOWTALK by Zayn Malik.