Katy Perry delighted fans when she shared a photo alongside her older sister, Angela Hudson, on Thursday and they sported two very different looks. The singer was celebrating her work with charity, Baby2Baby, and posted several photos to Instagram, including one alongside her sibling - but they're far from lookalikes.MORE: Katy Perry's hair transformation will leave you doing a double-takeKaty tucked her platinum blonde hair beneath a crocheted hat while Angela wore her gorgeous red locks in