Celebrities such as Brooke Shields and Josh Groban have stepped in to host the daytime talk showKelly Clarkson has been absent from The Kelly Clarkson Show for nearly a week — and viewers are wondering why.

Clarkson missed the March 3 taping of The Kelly Clarkson Show and was replaced by guest host Simu Liu at the last minute. She returned two days later but ducked out yet again, with several celebrities stepping in to take her place. Among those who have temporarily assumed the gig include Roy Wood Jr, Wanda Sykes and Brooke Shields.

The Kelly Clarkson Show has gone on without its host, and guest hosts including Wanda Sykes, Brooke Shields, and Kevin Hart, Roy Wood Jr., Simu Liu, and Willie Geist have stepped in to fill her shoes. Molly Sims returns to host the show today, March 14. The unexplained absence has caused concern among Clarkson’s fans.