Avril Lavigne for female one and Green Day's Billie Joe Armstrong for male. Just listen to Working Class Hero Green Day version, that's revolutioner song..
I like mainly male singer. I love the voice of Atif Aslam.He is the one of the great singer.He generally sing a romantic song,that is one of the reason i like both his voice and his songs.
To me, my Best Male and Female Singer is: Alicia Keys: Good Singing skills and knows how to play Piano and Enrique Iglesias: is the Good Singer for me on Male
My favorite male Singer is Atif Aslam. My favorite female Singer is Shreya Ghoshal & Sunidhi Chahuan.
No doubt, Lata Munkeshkar and Kishore kumar is a all time favorite and evergreen singers,,,' I have all collection songs of keshor and Lata.
As of this moment it would definitely be Beyonce and for the guys it is Usher. The R&B scene has taken over.
LATA MANGESHKAR & SURESH WADKAR is my best female & male singer respectively. in india LATA DIDI is named as gankokila