Not if you carry on like that, you wont.....

Zack wondered onto the stage, pulling a couple of gas cylinders on wheels onto the stage.  People looked on, confused as he pulled them up, near to the microphone, and connected a pipe to the valve.
 
The crowd went quite as Owen loaded up the song.  Zack started tapping his foot in time with the music, and took a large drag from the cylinder.
"At first I was afraid, I was petrified" he squeeked in a perfect soprano/falsetto voice, shattering a beer glass at the back, "kept thinking I could never live without you by my side....."
He then proceeded to give an almost perfect rendition of "I Will Survive", punctuated once by him blacking out from lack of air.
"Breath damnit, got to remember to breath normal air as well......" he mumbled to himself as he picked himself up, and carried on with his song. "...did you think I'd crumble, did you think I'd lay down and die?"
After a couple of minutes, Zack finished with "I will survive....  I will survive.....".  While the music was still fading away, Zack quickly fiddled with the cylinder, inhaled deeply from the pipe, and, holding a light cigarette, blew an eight-foot fireball into the air above him.
He then turned the valve, and walked off stage, lugging the cylinders with him.
 
The was a brief pause, then the stunned audience broke into applause, and for once, not throwing anything (well, would you throw anything at someone who can blow 8-foot large fireballs?).