Kelly Clarkson still hasn’t offered any official explanation from her weeks-long absence from her talk show, The Kelly Clarkson Show. But on the special 1,000th-episode celebration of the show that aired over the weekend,

Clarkson covering Houston on her show is familiar terrain. She has sung such hits as “How Will I Know,” “Saving All My Love For You,” “I’m Every Woman, ” “All the Man That I Need,” “Run to You” and “Queen of the Night.”