In an unusual case of celebrity wife swap, Halle Berry's ex-husband, R&B singer Eric Benet, announced that he and Prince's ex-wife, Manuela Testolini, are engaged.

According to People magazine, Benet popped the question to the Canadian-born Egyptian and Italian beauty last November after playing a love song from his new CD.

"During a romantic dinner I decided to finally let Manuela hear 'Never Want to Live Without You,' a song off my new album that I had written for her," Benet says to People. "I sang it to her, then got down on one knee and proposed."

The two have been dating for three years and met at a charity event. Benet, 44, proposed to Testolini, who is the founder of Altru, a fragrance collection of soy-based candles, oils and incense, which supports her charity, In A Perfect World, a non-profit organization that teaches children to become compassionate, socially conscious leaders, with an antique diamond engagement ring.

The wedding is set for the summer.

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