Since 2008, Leiner has been a sought after wedding and concert singer. After releasing his breakout single "Kol Berama", he went on to reach international critical acclaim garnering over 150,000 views on that video alone, as well as over a quarter million view on his other songs and videos. Leiner has traveled the world bringing his unique range and energy to simchos and events. He is also currently leading the tefillos at The White Shul in Far Rockaway, Queens on Shabbos Mevorchim and for other special weekends. On February 24, 2014, Leiner released his debut album, titled Pischi Li.