It's time to dust off the bustier, slide into some velvet and sew on some sequins! In news that will make music fans from several generations very, very happy indeed, it's been reported that both Lady Gaga and Stevie Nicks will perform on the 'American Idol' season finale later this month.

According to Perez Hilton, the legendary Fleetwood Mac singer-songwriter will take the 'Idol' stage for what promises to be an epic performance.

There's been no word yet if we'll get to see a Stevie-Gaga duet, but it's likely that many minds will be blown by just the possibility of such a spectacular hook-up.

And that's not all Lady Gaga will be doing on 'Idol.' According to host Ryan Seacrest, the 'Born This Way' singer will be next week's mentor.