If energetic glee, unironic thumping disco beats, and unshakable melodies were valued commodities in the current US musical mainstream then Mika's stock would be as prized as that of someone like John Mayer.
That it isn't mattered not a whit to the 2,800 able-voiced members of the audience that packed the Orpheum Theatre Friday night to champion and nearly drown out the Beirut-born, London-bred pop singer, whose debut album "Life in Cartoon Motion" has become an international hit.
From the liberating opener "Relax (Take it Easy)" to the world's-best-birthday-party meets new-year's-celebration giddiness of closer "Lollipop" Mika proved as tireless a performer as he is a gifted melody-maker. The diverse crowd matched the booty-moving, call-and-response rhapsody of the singer-songwriter and his five-person band from start to finish, gamely responding, even when Mika called in an increasingly cartoonish, yet impressively tuneful falsetto.