Houseguests from past seasons of "Big Brother" are to return to the U.S. reality competition series in an upcoming episode, CBS said Friday.

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The former houseguests are to take part in a competition that will be broadcast on the network Sunday.

Set to return and listed in chronological order by season: are "Chicken George" Boswell, Bunky Miller, Amy Crews Ouellette, Jun Song, Jase Wirey, Janelle Pierzina, Mike "Boogie" Malin, Jen Johnson, Matt McDonald and Brian Hart.

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"The (current cast of) 'Big Brother 10' houseguests will be positioned inside the house, while the past seasons' houseguests will be in the backyard," CBS said in a press release. "A former houseguest will challenge a 'Big Brother 10' houseguest to guess if a statement made about a current event is in the news or not. If the houseguest answers correctly, they win food for one day of the week or a luxury prize for the house. If they guess incorrectly, the former houseguest will win a cash prize."