Peak Time (Korean: 피크타임) is a 2023 South Korean reality competition show created by JTBC. It aired on JTBC from February 15 to April 19, 2023, every Wednesday at 20:50 (KST) for the first two episodes before it changed to 22:30 (KST) from the third episode onwards. It was simultaneously broadcast through TV Asahi and Abema in Japan, and TikTok in other parts of the world, and is also available for streaming on TVING in South Korea and on Viki in selected regions.

Lee Seung-gi is a South Korean singer, actor, host, lyricist and entertainer. As one of the highest paid celebrities of South Korea and recipient of numerous awards and accolades, including a Golden Disc Award for music and Baeksang Arts Award for acting, Lee has been featured multiple times in Forbes Korea Power Celebrity 40 list since 2010, and recently ranked sixth in 2022. His success as a singer, actor and host has earned him the title of "Triple Threat" entertainer and has established him as a top Hallyu star.