Take a look at celebrity couples with surprisingly large age differences, truly demonstrating that ‘true love knows no age.’ For example, Katharine McPhee and David Foster, with a 34-year age gap, tied the knot in 2019. McPhee often makes jokes about their age difference, saying she will be the ‘hottest step-grandma.’ However, the American Idol alum has also admitted her concerns about how others might perceive their significant age gap. It’s truly amazing to see the power of ‘true love’ in the entertainment industry. As for these celebrity couples with vast age differences, they all seem to be interpreting ‘age is just a number’ in their own way.