Mystery Jets are back with their second album. "Twenty One" is an awe-inspiring collection of oddball pop songs. A clear departure from their debut album "Making Dens", these four young men have grown up in more ways than one. Produced predominately by DJ legend Erol Alkan and with one track, ("Half In Love With Elizabeth") helmed by veteran British producer Stephen Street, it's a huge stylistic and emotional leap forward for the band.