Add row in 2 worksheets

Hi

I need to add a row in tab "Clients", every time I have a new customer. Then I need to add that same row in another tab "Master". I tried using a macro but it copies the same row with the same information again and again.
Basically i need to add a row, put in some info and that automatically the same row is added in another tab

Hopefully someone can help me

Thanks in advance