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Both with and without his songwriting/production crew The Smeezingtons, Mars has had a hand in hits by Cee Lo Green, Sugababes, Justin Bieber, Adam Lambert and Alicia Keys, and has scored a clutch of UK and US number ones under his own steam – all in just a couple of years on the scene. Either he's the new Smokey Robinson or he's spreading himself so thin he'll be a chirpy pop gauze by 2013.
Well, he's not quite see-through yet. It's soon plain that Unorthodox Jukebox lacks the immediacy of 2010's Doo-Wops & Hooligans – there's no Marry You here, and certainly no global chart-topper like Just the Way You Are.
But it's appealing, generally engaging and all shot through with the confidence of a man who must feel he's got the hit parade Midas touch. Bar the odd misstep, he probably won't have a rude awakening.
Those stumbles are Show Me's wan facsimile of Musical Youth's Pass the Dutchie (one of 2012's more unlikely influences) and the sugary early 80s funk of Treasure, which is lathered in so much slap bass it starts to sting.
Speaking of Sting – ouch – his spectre is all over first single Locked Out of Heaven, in the clipped Message in a Bottle chords and Mars' yelping, staccato delivery. But that's about the only time Mars allows his own identity to be subsumed.
Otherwise, he's equally cosy fronting saucy semi-rock belter Gorilla – "You get your legs up in the sky with the devil in your eyes" – and sprinting on the spot to the unhinged electro-soul of the Diplo-produced Money Makes Her Smile.
The latter's some respite from maudlin "My baby wronged me" / "I wronged my baby" stuff in Natalie and When I Was Your Man, but there's room for both in Mars' repertoire. Rock, soul, RnB and starry-eyed pop – he's across it all.
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