Singer Fergie, left, and a guest attend the Warner Music Group Grammy celebration hosted by InStyle at Chateau Marmont on Sunday in Los Angeles. (Todd Williamson / Getty Images)
Grammy nominee Bruno Mars performs. (Todd Williamson / Getty Images)
Country music singer Reba McEntire, left, with “The Voice” judge Blake Shelton and “American Idol” alum Kelly Clarkson. (Todd Williamson / Getty Images)
“Glee” star Matthew Morrison, left, and cast member Chord Overstreet. (Todd Williamson / Getty Images)
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R&B singer John Legend and Grammy nominee Bruno Mars. (Todd Williamson / Getty Images)
British singer Estelle. (Todd Williamson / Getty Images)
Musicians Elvis Costello, Diana Krall and Lyor Cohen, the latter of whom is Warner Music’s North American chairman and CEO of recorded music. (Todd Williamson / Getty Images)
Singer Lana Del Rey and after-party host InStyle Editor Ariel Foxman. (Todd Williamson / Getty Images)
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Actresses Sanaa Lathan, Malin Akerman and Minnie Driver. (Todd Williamson / Getty Images)
Model Renee Puente, actor Matthew Morrison, actress Malin Akerman and musician husband Roberto Zincone. (Todd Williamson / Getty Images)
