List of Celebrity Big Brother (American TV series) houseguests
"Celebrity Big Brother" is 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, and is produced by Fly on the Wall Entertainment in association with Endemol Shine North America; Allison Grodner and Rich Meehan serve as executive producers. 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. Twelve HouseGuests were announced on January 13, 2019, during a commercial break of CBS's NFL football coverage. The second season lasted for twenty-nine days and ended on February 13, 2019, when Tamar Braxton won in a unanimous vote over Ricky Williams. Twenty-three participants have competed  in "Celebrity Big Brother", but Anthony Scaramucci was declared to be a fake HouseGuest as part of a twist. The series follows a format similar to the main edition in which players leave the game when they are "evicted" from the house by vote of their fellow HouseGuests. In 2018, Mathews and Jaret Winokur received their own aftershow, "Off the Block with Ross and Marissa," that aired alongside the twentieth season of "Big Brother". In addition, some of the first season contestants returned for the second season to host competitions. Brandi Glanville previously participated in the twentieth season of the  United Kingdom's version of "Celebrity Big Brother" while Omarosa is set to be a contestant in the upcoming Australian version of "Celebrity Big Brother", entitled "Big Brother VIP".