United Kingdom, March 7 -- Lady Gaga is "desperately trying" to keep her wedding private.

The 38-year-old pop star has been engaged to tech businessman Michael Polansky, 46, for just under a year and they are set to tie the knot at some point but she really wants to keep the whole thing under wraps.

She told E! News: "I'm desperately trying to keep that so private but I would say I can promise that it will be the best day of my life."

The 'Disease' hitmaker had insisted that Michael propose to her with a blade of grass if he ever wanted to get down on one knee and even though he followed through with her wish, she now has the traditional ring.

She said: "He said to me, 'If I ever proposed to you, how do I do that? And I said, 'Just ge...