By Chuck Arnold Jessica Herndon
November 08, 2010 12:00 PM

>KE$HA will pump up your body and spirit with the empowering “We R Who We R,” from the pop diva’s EP Cannibal, due Nov. 22.

$1.29 at amazon.com.

GREYSON CHANCE, the 13-year-old “Paparazzi”-singing YouTuber signed by Ellen DeGeneres, drops his first single, “Waiting Outside the Lines,” a lovelorn ballad.

$1.29 at iTunes.com.

CHRISETTE MICHELE sparkles with soul on “I’m a Star,” a midtempo R&B jam from Let Freedom Reign, due Nov. 30.

$0.99 at zune.net.

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