Despite reports of lagging ticket sales, Katy Perry showed up to a filled American Airlines Center on Sunday evening with her A-game intact, proving to her critics that 10 years after launching her career with “I Kissed A Girl,” she’s still poppin’.

Her decadelong run could be attributed to the fact that her appeal transcends age groups — there were just as many people over 30 singing along with Perry as preteens with their parents.

Perry asked for all the 10-year-olds in the crowd to scream and then let this sizable contingent of the arena know that her next song, “Hot N Cold” is as old as they are.

The preteen crowd made this show tamer than some (not that Perry spared them any of the lascivious lyrics in tracks like “I Kissed a Girl”),

but the ages of the crowd (younger than 12, older than 40) meant that half of the arena sat through her set, which was not for the stamina challenged, clocking in at more than two hours.

She put on a strong and spirited performance with ornate stage and costume design that rivaled that of Lady Gaga’s AAC show a month ago.

Standout costumes included a rhinestone-encrusted, silver gown with a matching rhinestone-encrusted, Egyptian-inspired wig and silver over-the-knee boots, as well as a structured, high-neck, gold bodysuit with gold, armor-plated arm pieces.

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