Washington, Apr 17 Pop star Lady Gaga was dazed when her song 'Just Dance' went on to become a chart topper, as she had penned it in just 10 minutes flat.

The song not only became a chart-topper across six countries, including America and U.K., but it also earned Lady Gaga a Grammy Nomination.

"It's been unbelievable the way the song has crossed over into the mainstream. It took 10 minutes to write!" Contactmusic quoted her as telling Brit magazine Heat.

"I think it's because it's a happy record. Maybe the record will be appreciated more now there are lots of people who are going through rough times, losing jobs and homes," she added. (ANI)