Season 9 Episodes19
Cast3

Bob Harper
Self

Alison Sweeney
Self - Host

Jillian Michaels
Self
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Ranked #10 of 19 in Season 9•−0.1 vs season avg
This week starts off with a high-stakes pop challenge in which contestants race for the prize of immunity - and the winning team also gets three envelopes to give to the teams of their choice with instructions that could have a dramatic impact at this

Bob Harper
Self

Alison Sweeney
Self - Host

Jillian Michaels
Self
0 comments
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Share your take and reply to other fans.
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"Season 9, Episode 4" is episode 4 of The Biggest Loser season 9. It scored 6.5/10 from 11 votes, ranking #10 of 19 episodes this season (season average 6.6). It aired on January 26, 2010.