Twenty-three participants have competed on Celebrity Big Brother, the American adaptation of Celebrity Big Brother and second spin-off of the United States version of Big Brother. It premiered on CBS on February 7, 2018. The series is hosted by Julie Chen Moonves. The Celebrity HouseGuests for the first season were revealed during a live pre-show of the 2018 Grammy Awards on January 28, 2018. The first season began filming on January 31, 2018 and concluded twenty-six days later on February 25, 2018, when Marissa Jaret Winokur and Ross Mathews were announced as the winner and runner-up of the season, respectively. On May 5, 2018, CBS renewed the series for a second season, which premiered on January 21, 2019. The second season lasted for twenty-nine days and ended on February 13, 2019, when Tamar Braxton (pictured) won in a unanimous vote over Ricky Williams. (Full list...)