Producer Nigel Lythgoe has confirmed Katie Holmes will make a charity appearance on So You Think You Can Dance this season.

The ”Batman Begins” actress was previously rumoured to be taking secret dance lessons for the finale of the US talent show.

And now Lythgoe has confirmed the reports, adding producers were still waiting for a thumbs up from official channels before making any further announcements.

“It’s about a charity [but] I do not have the status. It’s just not legal to talk about it at the moment,” People magazine quoted him as saying.

He added: “Katie is a small part of what is going on. It’s more than Katie.”

The season finale is set to be aired on August 6. (ANI)