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9 February 2012, 19:50 | Updated: 9 February 2012, 20:03
The British singer-songwriter will also keep working on the follow-up to her debut album 'Who You Are' during her stay stateside.
Jessie J has been pictured leaving the UK on her way to America to attend the Grammy Awards 2012 and continue work on her second studio album.
The 'Domino' singer tweeted her fans earlier today (9th February) after being pictured leaving the country by paparazzi photographers at Heathrow Airport in London.
"Just got papped with zero makeup and un-done hair. Hahahaha! Brilliant," Jessie wrote. "I'll get off this plane to that all over my twitter.
She added: "LA here I come #grammys #studio let's gooo!!!"
Jessie J is expected to make an appearance at the Grammy Awards this weekend, which will air live from the Staples Center in Los Angeles on Sunday (12th February).
This year's Grammys will feature the live return of Adele as well as performances from Chris Brown, Maroon 5, Kelly Clarkson, Bruno Mars, Katy Perry, Coldplay and Rihanna.
Jessie J is also expected to continue work on the follow-up to her 2011 debut album 'Who You Are' during her stay in the US.
View a picture of Jessie J boarding a plane at London's Heathrow airport below: