Then again, it kinda made sense. This is, after all, Las Vegas, where stranger collaborations have certainly happened. Also, Moore's label Big Machine recently announced they'd be releasing a country tribute to Motley Crue. Artists confirmed for the tribute album include Moore, Florida Georgia Line, Eli Young Band and Cassadee Pope.

The performance Friday night (April 4) was part of the second annual Party for a Cause, with the cause in this case being Outnumber Hunger, which aims to end hunger in America. The show featured Moore, Rascal Flatts, Florida Georgia Line, Pope, Danielle Bradbery, Thomas Rhett, Will Hoge, Charlie Worsham and many others.