When Ke$ha went No. 1 with her debut single, 2009’s “TiK ToK,” I thought the clock would soon enough run out on her party. But her sing-rap shtick has shown surprising staying power while she has revealed more talent as a songwriter (Britney Spears’s “Till the World Ends”) and vocalist (a cred-boosting “Don’t Think Twice, It’s All Right” on a Bob Dylan tribute). Warrior, Ke$ha’s second full-lengther, proves that she’s not a one-hit-album-plus-EP wonder. Led by the hit first single “Die Young,” another party-all-night anthem, this is electro/dance-pop with a rebel-punk spirit. Letting her freak flag fly, she even rocks out with Iggy Pop on “Dirty Love.” This wild child, though, also slows her roll for the sweetly affecting ballad “Wonderland,” adding some real heart to the beats.
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