Prime Minister Najib Abdul Razak's wife Rosmah Mansor today defended herself against what she called opposition "lies" about her, during an unlikely by-election appearance at the all-important Felda settlements in Kerdau today.

Hitting the campaign trail to whip up support for BN's candidate Syed Ibrahim Syed Ahmad, the self-proclaimed 'First Lady of Malaysia' urged voters to reject the allegations and lies brandished against her by Pakatan Rakyat.

"Look at my face until you are satisfied. Do I look like a liar? I don't, right?," she told some 200 settlers of Felda Jengka 25.