Case/Lang/Veirs is a rarity: a project of true collaboration from three singer-songwriters on equal footing.

Sure, K.D. Lang may be the most familiar, but the “Constant Craving” singer’s work with New Pornographers’ Neko Case and indie-folk standout Laura Veirs shows that her knack for picking great collaborators is alive and kicking. “Case/Lang/Veirs” (Anti-) is packed with one treat after another, as each singer makes her mark with support from two remarkable singers.

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Lang takes the lead on the gorgeous first single “Honey and Smoke,” with Case and Veirs offering ’60s girl group harmonies to set off her lush croon. That setup also works well on the elegant ballad “Why Do We Fight?”

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But Case/Lang/Veirs is definitely a collective, as shown in the lovely, dreamlike “Delirium,” with Case singing lead but clearly affected by Lang’s more languid vocal style.

On Veirs’ “Best Kept Secret,” the bounciest of the album’s 14 songs, the influence of Case’s main band New Pornographers can be felt, along with the joy Lang and Case exude on the backing vocals.

Case/Lang/Veirs is built on that spark — the thrill of trying something new and seeing it flourish immediately.