I don't know if she can act, but if she were gonna do a musical she obviously would put in the effort and work on the acting.
I'm sure she would try, but in the preview (available on demand on TW Cable) for the Robin Williams' pilot, Miss Clarkson says (and I quote), "I suck at acting."
just watched the video and WOW. I don't remember that night. She was fantastic! what a departure from what she does now. Who knew she was so versatile. WOW
^^^ She is great in the throat and in the eyes, but notice how they film the entire number in close up and compare it to Bette Midler's version in FOR THE BOYS.
They are both great pop singers, but the difference is Midler "sings" from head to toe; Clarkson sings from the neck up.
Of course, the AI clip is old. I have no idea (except her own words) what Clarkson might do today. She's toured a lot since her AI days.
Kelly Clarkson is great, but I don't know about her on Broadway... I feel that it wouldn't be a good fit for her somehow. But again, with the right role, anything can happen. At this moment, nothing comes to mind for me though.
And in this Billboard cover story about the album, there is a vague reference to a possible Broadway album in 2014:
"To the Texan native who'll be celebrating her second Christmas at her Nashville home with Blackstock, the album represents a sort of second phase for her career. The new year will bring pop and country releases, as well as a potential Broadway album. In a way, her Christmas CD represents a break from her past and a sampler of what's to come-like the holiday itself."
If you like her "big band sound" get her new Christmas album. It's incredible. And her rendition, as posted above, of "My Favorite Things" is incredible. And the note she hits in "Have Yourself A Merry Little Christmas" is pretty spectacular.