Sir Elton John and his partner David Furnish are aiming for a "low-key" wedding in May following a change in the law which allows same-sex marriages.
The couple, who underwent a civil partnership in 2005 on the day such ceremonies were introduced, said friends had been eager to hear about their plans.
In an interview for US TV, Sir Elton said: "We'll do it very quietly. But we will do it and it will be a joyous occasion and we will have our children."
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Gay marriages became possible in England and Wales for the first time at the weekend. Prime Minister David Cameron hailed the introduction as a "historic day".
Sir Elton - who has two children with Furnish - said: "For this legislation to come through is joyous, and we should celebrate it."
And during the interview for NBC's Today pro-gramme, Furnish said of the anticipation from their circle of friends: "The phone's been ringing off the hook."
In another interview with Las Vegas Review-Journal, Furnish said: "I think what we'll do is go to a register office in England in May, and take the boys with us, and a couple of witnesses."
He also told how his chart-topping partner has had the names of their children tattooed on his back.
Sir Elton is back in the album charts with a 40th anniversary edition of Goodbye Yellow Brick Road.