Jessie J has seemingly teased fans with a clip of a new song.

The singer is busy in the States working in the studio on the US edition of her latest album 'Alive'.

She took to Instagram to post what appears to be a clip of herself dancing along to a new song, adding:

"Because I'm in a rebellious mood."

Jessie J meanwhile also recently took to the internet to state that she is constantly trying to gain weight, saying:

"To all the young girls commenting on my bikini picture. I am constantly trying to GAIN weight. And as a naturally slim woman At 5ft9 I am trying to be an example to any young girl similar to me that being stick thin is NOT good nor hot!"

She added: "I eat what I want in moderation! Too much fruit is not good beleeee that! I am not skinny I am slim. I have meat on my bones and I want more! I have never dieted but been healthy and aware that being fir it for life not for Instagram or looks! I work hard to be fit and it's not easy but it's IMPORTANT! For my career and for me! But everyBODY is different. What I have to do is different to what someone else would have to do to be HEALTHY! Let your aim to be strong and not a stick. To be happy and not skinny. And be healthy and BE YOU!"