Jake tends to have his eyes closed whenever he sings really emotional songs. Being a singer myself, it's kinda just something that happens a lot when you're really into the song.
Are you implying that Hedley is a single person? If you are, learn your facts first. If you just made a stupid mistake, then JAKE usually closes his eyes because it's emotional. You try not being moved, closing your eyes or getting nakakatindig balahibo while listening to Hedley.