Jennifer Lopez left fans asking many questions after she shared an unbelievable video of her nightly routine on Instagram.The singer recently launched her JLo Beauty line and has been busy singing its praises ever since.MORE: Jennifer Lopez shares most incredible bikini photo - but fans are dividedHowever, after she posted a video of herself using her brand's face wash to scrub off her heavy stage makeup – some fans were left in disbelief.WATCH: Jennifer Lopez's incredible new JLo Beauty