American Idol is about to get a whole helluvalot better!

A special guest will be appearing on AI next week, and it's none other than… DOLLY PARTON!

Ms. Parton will be a mentor to the finalists on April 1st and the night will be filled with her songs.

And, for all the lucky viewers, Dolly will return on April 2nd to perform live. Dolly will be singing Jesus & Gravity, the second single from her new album Backwoods Barbie.

It seems recent castoff Chikezie was set to perform Dolly's 9 to 5.

Someone else better be singing that next week!

Also performing next week will be The Clark Brothers. They're some bluegrass, country band that won The Next Great American Band. Yea, we didn't watch that either.

Besides, everyone will be tuning in for Dolly!

[Image via WENN.]