London, April 2 (Inditop.com) “Britain’s Got Talent” star Susan Boyle burst into tears when hundreds of fans threw her a surprise birthday party in Tokyo.

The unsuspecting singer, who turned 49 Thursday, is in Japan to perform and was left speechless when fans brought out a candle-lit cake and burst into a rendition of Happy Birthday, reports mirror.co.uk.

Music mogul Simon Cowell too surprised her by gifting her a $9,000 diamond and gold bracelet.

“She couldn’t believe her eyes and burst into tears. She had seen the bracelet in a magazine and said ‘Gosh, imagine owning something like that.’ So Simon tracked it down at Harrods,” said a source.