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Originally appeared on E! Online<\/a><\/p>\n Rihanna<\/a><\/strong>\u2019s got love on the brain.<\/p>\n The \u201cUmbrella\u201d singer, who welcomed baby girl Rocki Irish Mayers<\/strong><\/a> with boyfriend A$AP Rocky<\/strong><\/a> Sept. 13, made her first public appearance since giving birth to celebrate the \u201cFashion Killa\u201d rapper\u2019s 37th birthday Oct. 3 in Los Angeles.<\/p>\n The couple\u2014who are also parents to sons RZA<\/strong>, 3, and Riot<\/strong>, 2\u2014arrived in style to a party in A$AP\u2019s honor as they rode in a vintage black Rolls Royce convertible. RiRi wore an oversized black leather jacket and dark sunglasses as she wrapped her arms around her partner, who looked suave in a beige trench coat covering a white dress shirt and striped tie.<\/p>\n One week earlier, the Fenty Beauty founder, 37, announced Rocki\u2019s arrival by sharing a heartwarming mother-daughter photo on her Instagram<\/a> page. In the pic, the newborn wore an adorable pink outfit with a matching bow along with a pair of pink ballet slippers as she napped in her mother\u2019s arms.<\/p>\n More from E! Online<\/strong><\/p>\n As for Rihanna, the \u201cDiamonds\u201d singer certainly shone brightly as she introduced her little one to the world, rocking no less than $128,000 worth of jewelry<\/a> as she cradled the infant. Among the dazzling pieces she wore were a pink Audemars Piguet Royal Oak rose gold wristwatch<\/span> valued at $99,900, according to the brand\u2019s website, as well as a $40,000 gold pendant by Marie Lichtenberg<\/a> and a $7,950 Splendente Letter Pendant<\/a>.<\/p>\n