New music: in stores and online, Nov. 23-24

New music: in stores and online

Once-poppy R&B diva Rihanna (pictured) returns with a rougher edge, "American Idol" runner-up Adam Lambert makes his big, glammy debut, and Lady Gaga gives us a taste of what's to come—Metromix has full reviews of this week's biggest releases (listed below), as well as quick takes on fresh LPs from the likes of Susan Boyle, Jay Sean, k-os, BlakRoc, Logan Lynn and more, inside the photo gallery.—Keith N. Dusenberry, Special to Metromix

Rihanna, 'Rated R'

Adam Lambert, 'For Your Entertainment'

Lady Gaga, 'The Fame Monster'

Which of this week's releases are on your must-hear list? Tell us in the comments section.