Singer Jessie J's performance at "The X Factor" show, has mesmerised One Direction's Niall Horan.

The 21-year-old singer couldn't withhold his admiration and made a proposal to Jessie via the social networking medium, reports dailymail.co.uk.

"@JessieJ marry me," Horan posted on his Twitter page.

Although it was simply a joking offer as the singer got impressed by Jessie's performance.

Jessie, 26, made a good impact to her performance Sunday, wearing a skimpy black costume, which featured a black brassiere and hot pants underneath a bejewelled body costume. She completed her look with a pair of thigh-high boots.

However, just last week, Jessie turned down a lucrative offer to be a judge on "The X Factor" over bullying concerns.