London, Apr 24 : Britain's Got Talent's singing sensation Susan Boyle's new brunette look has got bosses on the ITV1 talent show frantic, as they had wanted to keep her just the way she was ahead of the finals.

Boyle, 48, went for a 35 pounds hair makeover and got her wiry grey locks coloured brown, and straightened.

"It wouldn't be right to dye her hair and suddenly make Susan all glam. People have fallen in love with the real Susan. We don't want to change what they fell in love with," the Sun quoted a source as saying.

The singer, who refused to discuss her new hairstyle, and kept it hidden beneath a shawl, spent 90 minutes at a salon near her home, and came out with a modern, wavy, brunette style to complement the slimmed-down eyebrows she'd had trimmed for 5 pounds days earlier.

Boyle had her hair done at the Miss Toner salon in Whitburn, near Blackburn, West Lothian by Caroline Boyle, 45, no relation of hers, along with a facial.

Salon management refused to comment on Boyle's visit. (ANI)