The actress, who’s a good friend of Manilow’s, said that the couple has indeed tied the knot while appearing on Watch What Happens Live Thursday evening.
“They’re married and they’re happy and I was there when it was announced,” Somers said in response to a question from a caller.
“He’s extremely private, extremely,” said Somers. “I think it was very difficult, and it’s very difficult for me to talk about, so I want to do it with complete respect and love.”
She added: “He’s an awesome person, they’re both awesome people, they’re my dearest friends.”
A friend of the couple’s told PEOPLE that Manilow and Kief swapped vows at a “lunch” at the singer’s Palm Springs, California, home last year.
They “are committed to one another and have been for a very long time,” a Manilow source said. “They have a great relationship.”