At the end of last year, country singer Morgan Wallen hit the arena circuit as the opener on Luke Combs' massive tour. This summer, he'll hit the sheds and amphitheaters with Jason Aldean. For the first month of th year, however, he's headlining his own gigs and holds down a two-night stand this week at MGM Northfield Park — Center Stage. Recently named to People's “Ones To Watch” list, Wallen scored his first ever CMA nomination for New Artist of the Year. Wallen takes a rock 'n' roll approach to his live sets. When he opened for Combs' here last year, he blasted a smoke machine at the start of his set, and he regularly encouraged the audience to “get rowdy.” A ZZ Top-like guitar riff kicked off “Happy Hour,” one of the 40-minute set’s highlights. And the rousing “Whiskey Glasses” came off well too during the polished performance. Expect tonight's show to deliver too. (Jeff Niesel)