BtoB ( BEE-too-bee; Korean: 비투비; acronym for Born to Beat; often stylized in all caps) is a South Korean boy band formed in 2012 by Cube Entertainment. The group consists of Seo Eun-kwang, Lee Min-hyuk, Lee Chang-sub, Im Hyun-sik, Peniel Shin and Yook Sung-jae. Originally a septet, Jung Il-hoon departed from the group on December 31, 2020.

BtoB debuted on March 21, 2012, performing "Insane" (비밀) and "Imagine" on M Countdown. The group's debut EP, Born to Beat was released on April 3, 2012. They released their first full-length album, Complete, in June 2015. In November 2014, they made their Japanese debut with "Wow" under the Japanese agency Kiss Entertainment.

Since the group's 2012 debut, they have received multiple awards, including the 30th Golden Disc Awards Best Vocal Group in 2016, 2017 Melon Music Awards Top 10 Bonsang and 25th Seoul Music Awards Ballad Award in 2018. Five of their albums topped the Gaon Album Chart, and nine of their singles peaked in top ten on the national Gaon Digital Chart.