Top Definition
An amazing singer with an amazing personality and an amazing voice. The singer of "Do it like a Dude" which was number 1 on Itunes in UK for 2 weeks. She also co wrote "Party in the USA" sung by Miley Cyrus. Justin Timberlake called her the best singer in the world and Britney Spears is a fan of her.

Has a British accent but sings in an American accent. Real name is Jessica Ellen Cornish. Jessie J came top of the BBC's Sound of 2011 list and received Critics' Choice at the 2011 BRIT Awards.
Man'dem 1: Who is this insanely awesome song by?
Man'dem 2: Jessie J. Duh!!!
by VegasGirl18 April 26, 2011

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A british Singer/Songwriter whos debut album titled "Who You Are" dropped in April of 2011. She first saw fame when she began writing tracks for singers Chris Brown and Miley Cyrus. The most successful track she co-wrote is "Party in the U.S.A.", which gained Platinum certification in many countries.
American: Who is Jessie J? i saw her on SNL once..

Brit: You've never heard of Jessie J? She is Britian's new Pop sensation!
by ukaccessjessiej May 07, 2011

The Urban Dictionary Mug

Lotsa space for your liquids.

Buy the mug

The Urban Dictionary Mug

Lotsa space for your liquids.

Buy the mug

The Urban Dictionary Mug

Your favorite word on a white mug.

Create a mug

The Urban Dictionary Mug

One side has the word, one side has the definition. Microwave and dishwasher safe. Lotsa space for your liquids.

Buy the mug

The Urban Dictionary T-Shirt

Soft and offensive. Just like you.

Buy the t-shirt

The Urban Dictionary T-Shirt

Smooth, soft, slim fit American Apparel shirt. Custom printed. 100% fine jersey cotton, except for heather grey (90% cotton).

Buy the t-shirt