Will Alexander/Paul Godly/WENN

The singer, who is currently taking the US by storm, has been in and out of photo shoots and filming for videos since his move to New York. But, the star has been working out to make sure he's in top shape.

Check out his biceps in this behind-the-scenes video at a location for a London photo shoot.

Regularly tweeting his sit ups and press ups, the star tweeted yesterday: “Aaaah man. Plyo (plyometrics) is the hardest damn workout I’ve done. That kills me. Another vid next week so I’m getting in top condition...!!”

Jay Sean, who is originally from London, has been signed to Cash Money Records and has hits with ‘Down’ and ‘Do You Remember’.

We think Jay Sean’s muscles are all in order – don’t you girls?