Kat Callanan has 7 Louis Tomlinson concerts.

Louis William Tomlinson (born Louis Troy Austin) is an English singer and songwriter. He rose to fame as a member of the boy band One Direction. Tomlinson began his career appearing in television dramas before he auditioned on the British music competition series The X Factor in 2010. After being eliminated as a solo performer, he was placed into a group with four other contestants, forming One Direction. One Direction went on to become one of the best-selling boy bands of all time.