Tina Turner has married her 57-year-old toyboy beau Erwin Bach in Switzerland, it has been revealed.

Tina Turner, 73, and German record company executive Erwin Bach exchanged vows on the shores of Lake Zurich in Switzerland several days ago.

And the newlyweds will cement their union this weekend at a Buddhist ceremony this weekend in Zurich, which Tina Turner has called home for the past 15 years.

Around 120 guests, including David Bowie, Oprah Winfrey and Sade, are due to attend as Tina Turner and Erwin Bach celebrate their marriage at their Kusnacht home.

According to Swiss weekly Schweiz am Sonntag, Tina Turner has requested that all the guests wear white to the celebration, while she will be wearing a gown designed by Italian fashion giant Giorgio Armani.

Clearly anticipating an enjoyable evening, it was also reported that Tina Turner and Erwin Bach had already sent out letters to neighbors and local residents apologizing in advance for any noise they might cause.

Tina Turner has married her 57-year-old toyboy beau Erwin Bach in Switzerland

Tina Turner’s union with Erwin Bach marks her second wedding – her first being a volatile 14-year marriage to the late Ike Turner, with whom she found fame in the 1960’s.

Following their divorce in 1978 Tina Turner recounted the domestic abuse she suffered at the hands of her first husband in bestselling 1986 memoir I, Tina – the inspiration for big-screen biopic What’s Love Got to Do with it starring Angela Bassett as Tina and Laurence Fishburne as Ike.

Tina Turner first met Erwin Bach at an EMI record label bash in 1985, although their relationship remained platonic for more than a year before they started dating.

Despite the age difference, Tina Turner and Erwin Bach have enjoyed a blissfully happy romance, something she referred to during a 2006 interview with talk show host Oprah Winfrey, in which she shot down any notion of marriage.

“People often ask me why don’t I marry,” she said.

“I have love. I have a good life. I don’t need to interfere with that. For some people, marriage means <<You’re mine now>>. That can be the beginning of the failure of a relationship.”

She added: “Psychologically, something happens when someone says, <<You’re my husband or wife. You can’t do this or that>>. It’s about ownership. That freedom that two people loving each other and wanting to be together – and being able to leave if anything is wrong – is gone.

“Neither Erwin nor I feel the need to get married. We’ve been together for 18 years. What would marriage give me that I don’t already have? Marriage would be about pleasing the public. Why do I need to please the public if I’m already pleased?”

Tina Turner has two children, sons Craig, from a relationship with late saxophonist Raymond Hill in 1958 and Ronald – her only child with Ike.