I need the name of the song....?

I was at Kennywood last night and they did this light show thing,
where they played a cute little song. i cant remember exactly how it
goes, but it was like 1234 i love you 5678 ilove you... abcd
"something" etc. it reminded me of NeverShoutNever's song I love you
5... bu tit wasn't :p haha sorry, i cant give more... there was
something about a ship sinking...? idk :/