SEOUL: Singer and actor Lee Joon has revealed that he was once rushed to hospital after suffering extreme exhaustion while juggling up to five work schedules a day at the height of his K-pop career.

The 38-year-old also surprised fans by disclosing that, despite working relentlessly and enjoying massive popularity, he had no savings because all his earnings went towards helping his family overcome severe financial difficulties.

"I once had to handle as many as five work schedules in a single day," he said during an appearance on the variety show Moo No Plan 4, produced by MBN and Channel S.

Lee recalled nearly fainting during a filming session because of his punishing routine, which prompted crew members to rush him directly to the emergency department for treatment.