ALV grid with 2 headers

Hi Gurus,

I need to display ALV GRID as below.

Header1 Header2

col1col2 col3 col4

Here header1 and header2 are top headers. Both Header1(col1 , col2) and Header2 (col3 , col4) have 2 subheaders below them.

Could you please tell me, how to display in this format.

Thanks & Regards,

Vinit