Rapper Wiz Khalifa, model Amber Rose engaged

Rapper Wiz Khalifa, model Amber Rose engagedRapper Wiz Khalifa proposed Thursday to model Amber Rose, his girlfriend of a year, Newsday's Frank Lovece reports. The "Black and Yellow" singer, 24, born Cameron Thomaz, tweeted a photo of Rose's hand wearing an oval-cut diamond engagement ring, accompanied by the caption, "She Said Yes!!!" Rose, 28, the former girlfriend of rapper Kanye West, subsequently tweeted, "He has made me the Happiest Woman in the World!!!!" The two began dating after appearing together last March on an episode of MTV's "RapFix Live."