Which half ?

I was a seed You thought wouldn't grow Thought I was asleep just now But I don’t know No, I don't know You say you want half of me Which half? Say it won't be like that Tell me you’ll be right back Which half? Which half? Which half? When the best is yours And the rest is yours When the best is yours Ooh-oh Oh-oh Say you want half of me Which half? Say it won't be like that Tell me you'll be right back Which half? Which half? Which half? When the best is yours And the rest is yours When the best is yours Oh When the best is yours And the rest is yours