She is alleged to have split from her billionaire fiancé James Packer following a dramatic fight in September. But Mariah Carey was still wearing her engagement ring when she stepped out for dinner at celebrity hotspot Nobu in Malibu on Thursday evening, enjoying a catch up with friends - including her choreographer and backing dancer Bryan Tanaka, who Packer was allegedly 'jealous' of. The 46-year-old singer's $10 million bling was hard to miss, perhaps hinting that she's not ready to turn her back on the relationship just yet.