Heidi Montag and Spencer Pratt Join The U.K.’s Celebrity Big Brother

Heidi Montag and Spencer Pratt enter the Celebrity Big Brother House at Elstree Studios on January 3, 2013 in Borehamwood, England.  Tim Whitby/Getty Images

Heidi Montag and Spencer Pratt are back on reality TV!

The former Hills stars officially joined the cast of The U.K.'s Celebrity Big Brother Jan. 3. The spouses of four years will be competing as a "single entity" against the 10 other housemates.

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"We've heard lots of names and seen lots of photos — some of them will be horrifying. It's going to be hard because I really don't like other people. I'm ready to get in there. I'm ready to do battle. It's on," Pratt, 29, said in pre-taped interview. "We definitely want to win. My game plan is to make everyone just want to quit and leave."

(At one point, the California native also said, "At one time, I definitely felt like we were the most famous people in the world. I love myself, what can I say?")

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Pratt's comments didn't sit well with his new housemates, particularly former X Factor contestant Rylan Clark and jockey Frankie Dettori.

The two were tasked with deciding who would get to live in the main house and who would live in the dingy basement for a few days. Pratt, 29, and Montag, 26, were ultimately sent below.

"They come from L.A. and have all the sunshine," Clark reasoned. "I come from Essex — it's mostly rain. I think we should stay."

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Pratt replied, "I'm down with going to the basement — it means I don't have to be with them."

The other housemates include model Paula Hamilton, Heartbeat actress Tricia Penrose, Neighbours star Ryan Moloney, EastEnders actress Gillian Taylforth, Beaver Falls star Sam Robertson, glamour model Lacey Banghard, Steps singer Claire Richards and soccer player Neil "Razor" Ruddock.

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