The brunette heiress may be several months pregnant but her baby bump was largely disguised by the LBD she wore to the glitzy event at the Royal Albert Hall on Tuesday (7 January).
Tamara covered up in a long-sleeved, roll neck dress, teamed with black heels that showed off the tattoos on her feet.
She finished her look with a cute black and gold mini box clutch, blinging gold watch and sizzling red manicure.
Tamara clearly had a good time at the VIP night, also attended by stars including Vanessa White, Danielle Lloyd and Amy Willerton, as she tweeted afterwards: "Loved #Quidam @Cirque amazing show fun night."
She was looking great despite admitting to feeling jet-lagged after her long haul flight back to the UK from LA, where she'd been enjoying a festive sunshine break.
Tamara rang in the New Year with her family in California, where she reflected on what an incredible past twelve months she'd had.
"2013 the best year I met my soul mate we got married and am pregnant now can't wait for the next months for the biggest blessing of my life," she tweeted.
Tamara and businessman Jay announced in October that they're expecting their first child together.
They married in a lavish event in the French Riviera in June attending by string of celebrity friends including Paris Hilton before returning to London where they held a second ceremony at Chelsea Old Town Hall.
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