The reality beauty looked red carpet-ready as she made her debut at famous Elstree Studios in Hertfordshire and she blew the crowds away in this show-stopping asymmetric gown which boasted a trailing train and a gilt waist belt.
Megan gave Kim Kardashian a run for her money as she sashayed past the paparazzi and flaunted her itsy-bitsy waist, not to mention her incredibly pert derriere in the standout number. We literally can't stop staring!
Even though the majority of guests were rooting for her, the brunette took the boos in her stride and stuck her tongue out at those who appeared to be less supportive of her latest venture - that's our girl!
Megan's frock wasn't the only thing that turned heads and she stayed true to her Essex roots with an AH-MAZING, gravity-defying bouffant 'do that bragged oodles of volume and gorgeous cascading curls. Top marks to her hairdresser, right?
With her sultry smokey eye and an uber-glossy lip, Megan joined The Only Way Is Essex's Gemma Collins, Geordie Shore's Scotty T and X Factor star Christopher Maloney to name but a few of the sixteen celebrity housemates that also filtered into the CBB house last night.
We can't wait to get stuck in!
CBB airs nightly on Channel 5.