the unknown song

[Areevia]

I've only heard this song once on the radio and i dont know who sang it but it was a guy so if anyone knows the name of the song and the singer of the following then please let me know.

Oh I cant live without you...
Oh I Cant (........)
cant try
not I

[plato888]

think its Mario Winans...Pretty Girl Bullshit ???

[robbo82]

It's not Barry Manilow's Can't Smile Without You, is it?