"The Masked Singer" debuted on January2, 2019, as a mid-season replacement to "Star". A month before the season finale on February27, 2019, Fox renewed the show for a second season. During its upfronts for the 2019–2020 United States television season in May2019, the network renewed the series for a third season to launch as the lead-out of Super Bowl LIV. The second season premiered on September25, 2019, and was preceded by a "Super Sneak Peek" episode which aired two Sundays prior. Before concluding on December18, 2019, it was pre-empted for two weeks by the broadcast of the 2019 World Series. On February2, 2020, the third season premiered following Super BowlLIV. After a "Road to the Finals" episode aired the previous day, it culminated on May20, 2020. Two weeks prior, the series was renewed for a fourth season to air during the 2020–2021 television season. Following a preview episode on September 13, it premiered on September 23, 2020. One week of the season was pre-empted due to the 2020 World Series. Two weeks before the finale on December 16, 2020, the series was renewed for a fifth season, which premiered on March 10, 2021. On May 17, 2021, Fox renewed the series for a sixth season a week before the fifth season's finale on May 26. The sixth season is set to air starting with a two-night premiere on September 22 and 23, 2021.