Whitney Houston marks the release of her hotly anticipated new album I Look to You with a performance on stage, and judge Cheryl Cole sings her debut solo track Fight for This Love (which was recorded on Wednesday. It took two hours to perfect). The two acts with the fewest votes then compete in the sing-off, hoping to win a reprieve from Cheryl, Simon Cowell, and Dannii Minogue, who hold the fate of the hopefuls in their hands (Louis, of course, isn't due to be there this week due to Stephen Gately's funeral). The finalists also provide another group performance after opening last week's show with (a painfully 'pitchy' performance of) I Gotta Feeling. Dermot O'Leary reads his autocue and hugs the loser(s) with aplomb.