American Idol winner Jordin Sparks has admitted that she was bowled over when she first caught Susan Boyle’s Britain’s Got Talent audition on Youtube.

The Tattoo singer revealed that she wasn’t sure what to expect when she first heard about Boyle but came to support the ‘underdog’ after hearing her sing.

“I’m such a fan of Susan Boyle. I was hearing all this commotion about her, so I looked her up online,” she told The Sun.

“I thought one of two things, either she’s going to be really good or really bad. So when she opened her mouth and was amazing, the look on Simon Cowell’s face was priceless.”

She added: “The coolest thing was she walked out there just being her and everyone was like, ‘Yeah, right’.

“And then she opened her mouth and all of a sudden you saw everybody’s mood and attitude toward her change. Everybody loves an underdog story, especially me.”