In an attempt to try to stop the media speculation around her pregnancy, Mariah Carey sipped champagne on stage in front of over 100,000 fans at the weekend's Singapore Grand Prix.

The singer, who also took a tumble on stage, still looked rather round - which didn't help the pregnancy rumour, but Mariah Carey still tried to shake off the media by glugging down the booze.

Perhaps this led to her downfall?

Check out our pictures of Mariah Carey performing at the Grand Prix and what looks like tummy-covering costumes... do you think she's pregnant or that Nick Cannon's just a feeder!?