MADONNA - MADONNA TRADES MACROBIOTICS FOR RED BULL

Pop icon MADONNA desperately needs energy drink Red Bull to give her an added boost when she is preparing for a performance.

The HUNG UP singer normally adheres to a strict macrobiotic diet that bans meat, eggs, dairy - and usually caffeine.

She says, "Sometimes I drink Red Bull. That's only when I'm desperate. That's only when I have jet lag and I have a show and I have to wake up and I need some serious artificial stimulation."

The star says she also relies heavily on coffee to keep her energy levels up but tries to keep her Red Bull intake to a minimum.

She adds, "I try not to do it very often, (but) desperate times call for desperate measures."