Name That Tune

Brianna has a way of creating unique titles for the songs that she loves. See if you can figure out what songs these are. Most of them are Primary songs, one is a familiar hymn (though not usually sung at this time of year).

Blue, Blue Sky
Crystal Clear
Gladly
Grace

I wanted to post the answers upside-down in the lower right-hand corner, but I didn't want any of you hurting yourselves trying to stand on your heads to read, so I'll post the answers later.