Jessie J live on Big Top 40 this Sunday

Jessie J, star of the amazingly catchy new tune 'Do It Like A Dude' will be joining Rich & Kat live on The Vodafone Freebees Big Top 40 Show this Sunday from 4pm to find out if her debut single makes it to the top spot.

Remember, it's the chart you can change, so if you want Jessie's single to hit the top spot, you've got to download it. Check out for more details.