The Backstreet Boys ate a bunch of kids' lunches at Wango Tango

“Here’s a newer song,” Adam Levine said, “for those of you not born before the other ones.”

Give the man credit for knowing his audience: Leading his band Maroon 5 on Saturday night at Wango Tango — the annual all-star pop concert presented by Los Angeles’ KIIS-FM (102.7) — Levine, 38, was addressing...