's third season kicked off on Wednesday, with a house full of big personalities and wildly different experience levels.This season, the star-studded cast includes 11 celebs who will be locked up together under the same roof as they compete for the $250,000 grand prize.The cast includes TV personality Carson Kressley, comedian and alum Chris Kattan, former NBA star Lamar Odom, NSYNC member Chris Kirkpatrick, alum Cynthia Bailey, UFC champ Miesha Tate, former Miss USA Shanna Moakler, alum Teddi Mellencamp, Olympic figure skater Mirai Nagasu, star Todd Bridges and singer Todrick Hall.Wednesday's premiere began with the celeb houseguests slowly but surely filtering into the house, settling in and getting to know one another.As each contestant entered, they opened up — to various levels of honesty — about how familiar they are with the show, and what their game play plans are.

Unlike the regular seasons of, most of these star houseguests are far more open and trusting in their first day together.However, with this season being significantly shorter than the usual host Julie Chen Moonves explained that the season «will be played on overdrive.»«Beginning tonight, one of you will win Head of Household.

This H.O.H. is safe from eviction during his or her reign. But they must nominate two housemates for eviction,» she explained to the houseguests. «These two nominees will have a chance to save themselves by competing for the power of veto.

In the end, two celebrities will be left on the chopping block, and the house will vote to evict one of them. This will happen twice a week until only one celebrity remains and claims the quarter-million-dollar grand prize.»It was a lot to take in for some, while others were just excited to get.

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