Don't really have much, but it goes like this: tu tu regret tu tu regret its sung by a male singer
this the only thing I've got in my head it's like the accecnt is stonger on the regret,
like he is singing "all the things and all the right that I... Regreeeet" Anyone have an idea? Maybe its not regret even, perhaps its similar word, not sure

Tried to google it but didn't find anything, google mainly gives my result of Brandi Carlile but it is not her song.