SIR Elton John fears Susan Boyle's fame will be fleeting, because she is too fragile to endure the "rigours of showbusiness".
The Scottish singer shot to fame on hit TV show Britain's Got Talent last year (09) and her debut album, I Dreamed a Dream, broke records as it topped charts across the world.
Her upcoming second record, The Gift, already looks set to be another big hit after topping pre-order lists ahead of its release on 9 November (10).
But Sir Elton is adamant that Boyle, who was admitted to London clinic The Priory suffering from exhaustion after finishing second on the TV show, won't be able to cope with the demands of superstardom.
He tells Britain's Radio Times, "Susan Boyle was an endearing phenomenon, but I fear she might not understand the rigours of showbusiness."