Nervo
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Miriam Nervo and Olivia Nervo are Australian musicians and songwriters, better known by their stage name Nervo or The Nervo Twins. After signing with Sony/ATV Music Publishing at 18 years of age, the twins pursued careers as songwriting partners, co-writing the Grammy Award-winning single, "When Love Takes Over", performed by David Guetta and Kelly Rowland.
source: Wikipedia