Pop superstar Miley Cyrus has laughed off reports suggesting she is pregnant with rapper Juicy J's baby. The Party in the U.S.A. hitmaker, 20, was said to have blurted out the baby news during an appearance onstage with the Three 6 Mafia member at the BET Hip Hop Awards in Atlanta, Georgia on Saturday (28Sep13). Joking about Cyrus' twerking-style dance moves, her 23 collaborator told the crowd, "I assure you she's been doing a lot more than twerking!" His quip reportedly prompted the singer/actress to announce that the odd couple is expecting, and when the audience thought the claim was a joke, she followed it up by stating, "No, I'm really pregnant!" Few other details from the awards show have been revealed as the majority of the proceedings and honorees will only be unveiled when the ceremony is broadcast in the U.S. on 15 October (13). However, Cyrus, who recently confirmed she had split from her fiance Liam Hemsworth, has since taken to her Twitter.com blog to express her surprise at the pregnancy reports and poke fun at the scandalous rumour. In a post on Monday (30Sep13), she wrote, "waking up to the news that I'm now pregnant with @therealjuicyj baby". She then relayed a conversation she had had with her best friend, Cheyne Thomas, about the baby claims, joking that she would be naming the tot "Juicy J Jr".