Lady Gaga

Tuesday: Compared with her first two blockbuster albums, last fall’s “Artpop” has been a commercial fizzle for Gaga. That hasn’t deterred her from filling her just-launched concert tour with “Artpop” material and, of course, eye-popping production. You’ve probably heard about her most outrageous gag — she changes clothes onstage and exposes her skull cap (under her wig) and her you-know-whats. (She asks her Little Monsters, which is what she calls her fans, to put away their cellphones for this truly Gaga moment.) Just don’t expect her to preview her jazz album, a collaboration with Tony Bennett due later this year. Opening is Japanese virtual pop star Hatsune Miku — she appears as a computer-generated hologram. (7:30 p.m. Tue. $37-$202. Xcel Energy Center, W. 7th St. and Kellogg Blvd., St. Paul. 1-800-982-2787.)