Like many celebrities, McPhee used her platform to encourage people to vote. Ahead of the 2018 elections, she tweeted out a photo of herself and Hicks at the American Idol finale to get her point across. "voting matters... register here," she captioned the shot, taking a jab at Hicks' victory.
Taylor, also a good sport, replied. "You're right, voting DOES matter!" he wrote. "But you're a little late to the party, Kat," he added, referencing a voting PSA he'd done earlier in the year.
While Katharine may not have walked away from American Idol with a victory, it still played a very significant role in her life. It was on the show that she first met her husband, David Foster. Foster appeared as a guest mentor, beginning a working relationship with McPhee that would turn romantic, according to E! News. The two married in June 2019, per Vogue.