Should you tone before or after weightloss?

Baby Asked: Should you tone before or after weightloss?

Hey, I intend to lose about 3-4 stone I want to be skinny with tones lean body, I plan to exercise throughout my dieting but only exercise bike and a few davina DVDs and weights now and then. Should I wait till all the body fat is gone to start properly toning and focusing on building muscles in specific areas to create a lean body? And will it matter what exercise I do to lose the weight or does any exercise help you lose weight from everywhere? Thanks !