Lady GaGa says her boyfriend Taylor Kinney ''cries'' when she sings.

The 28-year-old singer has been in a relationship with the 'Zero Dark Thirty' actor since 2011 when the pair met on the set of her music video for 'You and I'.

Gaga says Taylor, 33, gives her so much support in her life and career because he loves her unconditionally and gets so moved when she performs he often can't hold back his tears.

She revealed: ''Neither of us care to be viewed as a celebrity couple. Those sorts of things are not important to us.

''What has made me so happy with Taylor is that he fiercely loves me from the inside out. And he is completely blind to the way that I dress, my creative process as it is - he knows me as the Italian/American girl my mother and father gave birth to.

''He's very supportive of everything that I do. He's the first man that I've dated that, when I sing on stage, he cries. That means more to me than anything.''

At the end of last year, Gaga publicly confessed that she was smoking up to 15 cannabis joints a day while she was recovering from painful hip surgery.

The 'Do What U Want' hitmaker insists she has been able to give up her marijuana habit now she is healed and she is currently ''more sober'' than she's ever been before in her adult life.

In an interview with The Times newspaper, she said: ''Now that I'm healed, I don't smoke all the time any more. I'm very proud to say that I'm more sober now than I've ever been. I had a little puff the other day - nothing - just to have a nice massage in the afternoon. I can have it now and not need it, which is nice, but to be honest I don't need it at all.''