Jennifer Lopez recently made headlines when she dressed up as Madonna, her fiancé Alex Rodriguez's ex-girlfriend!In costume as the iconic pop star from her Like a Virgin music video, the mum-of-two admitted her 12-year-old twins, Max and Emme, were totally unamused by her antics - so much so that they hid in their bedrooms.MORE: Jennifer Lopez reveals major family change involving twins Emme and MaxWATCH: Jennifer Lopez's twins watch famous mum accept awardDuring a chat with Andy Cohen on