1. SoundCloud: Jay Sean's official SoundCloud page allows you to stream and download his music, including "Just A Friend."
2. Spotify: If you have a Spotify account, you can listen to "Just A Friend" and other songs by Jay Sean for free with ads.
3. YouTube: Many YouTube channels offer free music downloads. You can find "Just A Friend" by Jay Sean by searching for the title on YouTube and selecting the download option.
4. Free Music Archive: The Free Music Archive is a non-profit website that offers a wide range of music for free download, including "Just A Friend" by Jay Sean.