Katha.Ech has 3 Big Time Rush concerts.

Big Time Rush (also known as BTR) is an American boy band formed in Los Angeles, California, in 2009. They were featured on a Nickelodeon television show called Big Time Rush. The show has featured other American stars, including Nicole Scherzinger, Jordin Sparks, and How to Rock's Cymphonique Miller. The band consists of members Kendall Schmidt, James Maslow, Carlos Pena Jr. and Logan Henderson. The band released its debut album, BTR in October 2010.