Today marks 15 years since Christina Aguilera released Back to Basics, her ambitiously experimental and critically lauded fifth studio album.
A two-disc suite paying homage to some of the pop powerhouse's greatest inspirations, Back to Basics saw Aguilera adopting a new alter ego, Baby Jane, and recruiting a team of heavy-hitting producers—including DJ Premier, Linda Perry and Mark Ronson—to cross-pollinate contemporary hip-hop, pop and R&B sounds with retro elements.
Back to Basics debuted atop the Billboard 200 with 346,000 copies sold in its first week—16,000 more than its predecessor, Stripped, four years prior—and yielded two Top 20 singles ("Ain't No Other Man" and "Hurt"). It scored Aguilera a GRAMMY for Best Female Pop Vocal Performance (for "Ain't No Other Man," in 2007) and is retrospectively regarded as her riskiest album.
What's your favorite song off Back to Basics?