Donna Marie Trego earns a living as a Gaga impersonator and has spent tens of thousands on outfits, wigs and a team of dancers.
Now the 38-year-old, from Cardiff, South Wales, performs all over the world and has even been mistaken for the superstar herself.
Mrs Trego did her first performance with six outfits, most of which she had made herself.
Since then she has built up her show and now owns 40 outfits - including a bra that has pyrotechnics built in.
She said: "I didn't realise the time and effort I would need to dedicate to this to make it work. There's a lot of Gaga lookalikes and it's really competitive.
"I could have put down a deposit on a nice house, but instead everything I earn goes back into my act - I'm a perfectionist, everything has to be a certain way.
"It might seem like madness to have put so much back into my act, but if I'd invested the same amount in a hairdressers or another business people wouldn't think anything of it.
"When I started I couldn't have predicted how crazy it would go. She's constantly evolving and I have to keep up with that.
"Her new album has just come out but I have no idea what single will come out next or what her show will be like. I need to be ready for anything.
"I'm more than just a lookalike. I'm a tribute and an impersonator."
Mrs Trego started performing as Lady Gaga in 2010 after a themed night in the bar where she worked.
She said: "I was watching the tribute act and thought 'I could do a better job than this', but I was worried what my husband Nigel would say.
"The next thing I know he came running through the crowd and shouted that I should be a Gaga tribute.
"We slept on it and booked a gig a month away the next day."
She has now performed internationally, including Germany, Bahrain and Gran Canaria, and has won awards, such as the national tribute act award and a Goscar - a gay Oscar, for the authenticity of her act.
She has recently performed Born This Way: A Lady Gaga experience at St David's Hall in Cardiff for the third year running.
Since then she has travelled to Singapore and Macao, and performed at the Wales Millenium Stadium with Beverley Knight.