Lady GaGa is having a ''difficult time'' getting older.

The 'Pokerface' hitmaker made the admission as she joked with the audience about speculation about a possible pregnancy whilst on stage in Los Angeles.

She said: ''I'm getting a little older and many people think I'm pregnant but I tell them, 'I'm just almost f***ing 30.''

Speaking about her collaborator Tony Bennett, she added: ''Tony's taught me [that] you can live your life and feel the same every single day forever...

''Me on the other hand, I'm having a more difficult time with things. A little more here and there.''

Meanwhile, Lady Gaga previously admitted there was a point where she considered having children with her fiancé, Taylor Kinney.

She said at the time: ''I thought I did [want to start having children], because I was feeling kind of finished with all of the chaos of my life.

''But then I started to spend a lot more time with Tony, and everything just became simpler, more pure, and more perfect. Now I think I'm going to take a lot more time before I have kids and settle down. I just want to sing.''