David Foster, 69, and Katharine McPhee, 35, ‘bring out the best in each other’

The clock is officially ticking for Katharine McPhee to walk down the aisle and say ‘I do’ to David Foster.

And fellow musician Pia Toscano — who is set to head out on tour with Foster — praised their romance as ‘amazing’ and told US Weekly that the couple ‘light each other up in the best way.

The 69-year-old musician has been engaged to 35-year-old American Idol alum Katherine since June last year and the couple was recently spotted filling out a marriage license at the Beverly Hills courthouse.

‘I love them. They’re the most amazing couple,’ she said. ‘I was with them a lot this weekend. We did [book] a few shows together and I’m just so happy for them.’

She went on to say that the couple are extremely supportive of each other and know how to have a good time.   

‘They’re so fun together,’ she said. ‘They light each other up like that in the best way. They bring out the best in each other. They’re both very lucky to have each other.’ 

A friend indeed: Pia Toscano — who is set to head out on tour with Foster — praised their romance as ‘amazing’ and told US Weekly that the couple ‘light each other up in the best way; seen on Wednesday

And Pia isn’t the only one who thinks the couple are good together, as David himself previously claimed he ‘won the lottery’ when the American Idol alum agreed to marry him. 

Foster re-shared a picture of his fiance where she initially bragged she ‘can’t wait’ to marry David. 

The wedding could be happening a lot sooner than later after the pair were spotted picking up a marriage license at the Beverly Hills courthouse last week.

In the state of California, a marriage license expires 90 days after it’s issued.

Sweet: David proposed to Katharine in June last year while the couple were on holiday in Italy; seen earlier this month

Meanwhile, David’s daughter Sara said she thinks Katherine will be a ‘great addition’ to the family.  

‘She’s great. She’s a great addition. You know I’ve learned to not rule anything out [like David and Katherine having children]. I think anything is possible at this point,’ she said. Who knows? … She’s wonderful. The other day she was like, “I got you a facial,” and like that’s so cool. 

‘My dad loves love and my dad loves commitment. My dad’s always been married. He’s never been single really. He’s a real commitment, marriage kind of guy and I’m happy for him.’

Katharine was previously married to Nick Cokas for nearly five years before a divorce was finalized in February 2016, while David has been married four times and has five daughters and seven grandchildren.  

Love to give: Katharine was previously married to Nick Cokas for nearly five years before a divorce was finalized in February 2016, while David has been married four times and has five daughters and seven grandchildren; seen on Sunday