The 2019 Life is Beautiful festival in Las Vegas went down this weekend - and the lineup up was stacked ... 

 

 

But it was missing a little Vegas flair ... so The Black Keys decided to remedy that - by bringing out Mr Las Vegas himself, Wayne Newton, to join them on stage for a rendition of Lonely Boy. 

 

Check out the video below ... and listen to WRNR all this week to win tickets to see The Black Keys at The Anthem ... details here

 

Black Keys and WAYNE NEWTON at Life Is Beautiful 2019