Add white border to jpg file

[southofmotown]

I am trying to add a white border to a jpg file (see below) in Illustrator. Then I want to use the image to create a die cut sticker, so I need to export it as a png file so everything but the image is transparent. How do I do this? Thanks!

[Doug A Roberts · Accepted solution]

Quickest way would probably be to just draw round it with the pen, then use that as a clipping path for the JPEG, then export to PNG:

[southofmotown]

Thanks a lot for the suggestion. It worked out good!