sudden and unexplained absence for a little over a week.However, the singer-turned-TV personality failed to address what caused her to miss her hosting duties.Instead, Clarkson, 42, opened the show with her signature “Kellyoke” performance and interviewed “Severance” star Adam Scott and musician and YouTuber Marc Rebillet. Clarkson was first absent from her “The Kelly Clarkson Show” March 3.