Simcha Leiner, born in 1989 in the United States, is an American singer and composer known for his work in contemporary Jewish religious music. He began his career singing at weddings in 2008. In 2014, Leiner released his debut album Pischi Li, marking his official entry into the industry. His single "Kol Berama" was composed following the tragic events of March 11, 2011, and was featured in Tisha B’Av’s Chofetz Chaim Heritage Foundation’s videos. Leiner collaborated with Baruch Levine on two albums before releasing SL2 in 2015, followed by Merakeid in 2017, and Kol Hakavod in 2019, which he produced himself. In 2022, he released the album Home. Leiner is also an advocate against bullying, releasing the single "Stand Up for Each Other" in 2019 to address this issue.