Harshvardhan Singh has 3 Jason Derulo concerts.

Jason Derulo (born Jason Desrouleaux, September 21, 1989, in Miami, Florida, U.S.A) is a 1989-09-21 year-old singer-songwriter, dancer, choreographer, producer, and television host. His first album was released under the name Jason Derülo in 2010 and named likewise. By the time he released his sophomore album "Future History" in 2011, he had dropped the umlaut from the "u" in his last name. In 2013, he released his third studio album "Tattoo" internationally/ It included 11 songs while in the US, Derulo released a five-song EP under the same name. In 2014, he re-released Tattoo as "Talk Dirty" with four additional songs. His fifth studio album "Everything is 4" followed in 2015. As a television host, he's appeared as a guest judge on "So You Think You Can Dance" and "The Voice of Germany" as well as a coach on the 12th season of "The Voice (Australia)."