America's Got Talent Lines Up Season-Concluding Musical Acts

While America's Got Talent contestants vie for this year's title, we can confirm the acts that will be taking the stage on the final set of results show over the next few weeks. (Demi Lovato, seen here, performed last night.)

Demi Lovato on America's Got Talent

As first reported by AOL TV, viewers can look forward to the following artists:

• Tony Bennett (with Queen Latifah)
• Susan BoyleIl Divo
• David Guetta (with Nicki Minaj and Flo Rida)
• Def Leppard
• Jackie Evancho
• Michael Grimm

Explained executive producer Jason Raff: "We want the results show to be more than the results. We want it to feel like the variety shows that America used to watch."