I wouldn't climb into a balloon with that lot in the first place! Okay I wouldn't mind a balloon trip with Dawn French, but the rest of them - forget it!
Well, ignoring the fact that you`re in the gondola or basket & not the balloon, one could get rid of some of the ballast that balloons tend to carry in order to chuck out to gain height when necessary. Otherwise, chuck out Meatloaf, `cos the others aren`t too likely to start singing! ;o)