Need help remembering a song from a music video they did.

Hey all,
Just wondering if you could help me out here. I got this tune repeating in my head from an semi old music video they during one of the events. It was in the past few years.

The song is kind of slowish to set a sadish mood and I think part of the lyrics they used is "I'll remember" or "Forever". Then after they say that word it goes in to a guitar playing from a higher note to a lower note. Thats where it starts to repeat in my head.

Can someone please help me out here?


Sorry if you're like what did he say? lol

But if anyone can help me please do.

A GREAT thanks in advance!!