Wednesday saw Tulisa attending the Liverpool leg of the X Factor auditions in a vibrant red pleated dress from Alexander McQueen while Nicole wore an Elie Saab frock in a similar shade with peplum detailing to attend a screening of Snow Flower and the Secret Fan. Both ladies also embraced a strong red lip for some classic red carpet glamour.
Luckily the pair opted for different shoe choices meaning we could still tell them apart.
While Tulisa met fans in black mesh Nicholas Kirkwood heels, Nicole popped on a pair of barely visible Jimmy Choos. In fact, they're so barely visible we thought for a moment she'd gone to the screening barefoot.
Oh, and if you're thinking the comparison is a bit tenuous, just look at the messy one-sided plait Tulisa sported on her Liverpool visit and then cast your mind back to Nicole's Billboard Music Awards style...
Conclusive proof? We think so.