Funny how this phrase has caught on with so many people on the Internet. And weird.
A lot of people seem to think it's a clever bit of "ad-speak" that sprang from the head of someone at the Bud Light ad agency. Would it be as "in" if people knew it went back to a Seventeenth Century English folk song, and perhaps a nursery rhyme. Wiki:
https://en.wikipedia.org/wiki/Lavender's_Blue#Origins
(Yes, I have traced some of the references, so this is not just a bit of Wiki-speak.)
Who else recalls that Burl Ives had a big hit with "Lavender Blue, Dilly Dilly" back in the Fifties (I do)? How many people even know who Burl Ives is?
Does it seem quite as clever when you know they "recycled" something that goes back over 300 years?