Welcome back to another edition of The Weekend Stream, The Second Disc’s review of notable catalogue titles (and some new ones, too!) making digital debuts! We’ve got some new music from old pop favorites, a few Record Store Day Black Friday releases, and a pop icon and a big rock band moving their catalogues from one label to another. It’s a lot to keep up with, but we’ve got your back! Bruno Mars, “I Just Might” (Atlantic) (Apple / Amazon) Though Bruno Mars has hardly been absent from the pop charts recently – earning…