In March 2007 , Flack hosted the CBBC coverage of '' Comic Relief does Fame Academy '' , commenting on the semi-finals of the Eurovision Song Contest 2008 with Paddy O'Connell . She also hosted '' Big Brother 's Big Mouth '' during Week 5 of the 2008 series . Daily Mirror journalist Rob Leigh noted that " her sharp delivery makes her the best presenter they ’ve had on this series " . However , this was not the first time that Flack was linked to '' Big Brother '' . Before the series started , it had been reported that she was Dermot O'Leary 's replacement on '' Big Brother 's Little Brother ''
Eurovision Song Contest 2008
Eurovision Song Contest 2008
Caroline Flack