“Mayhem” puts the lie to that idea: Brash, squirmy, full of detailed grooves and expertly crafted hooks, it’s a winning reclamation of her trademark sound — her best since 2011’s “Born This Way” and precisely the album you’d want her to drop before headlining Coachella, as Lady Gaga will do next month.

She dances on the line between clever self-referentiality and less inspired rehashing on her new LP, committing to the over-the-top excess that first made her a star.

Believe it or not, it’s been 17 years since Lady Gaga first entered our musical lives with her instant-classic pop hit “Just Dance.” Over the years, the 38 year-old has worn many hats — most recently,