The small, accidental blaze on Saturday was quickly extinguished and no injuries were reported.
The Kansas City Chiefs star was also filmed hanging with Julia Roberts in the VIP section at Sunday's (June 30) show.
The Spanish star brought out Camilo, Juanes, Luis Fonsi and others at the sold-out show.
Michael Bublé, Cynthia Erivo, Dave Koz and Henry’s daughter Monica Mancini performed.
“It’s a bit of a -- do I dare say -- mind f-ck," admitted the band's Wendy Melvoin.
The singer was in the middle of "Cry Me a River" on Saturday when he spotted someone on the floor struggling.
The star was caught singing into a drum stick by accident at a recent show.
The country star's show also featured openers Zach Top and Ian Munsick.
The singer returned on Tuesday night (May 28) to the venue he first played in Oct. 1978.
