"Toxic" is a Grammy Award-winning dance-pop song written by Bloodshy & Avant, Cathy Dennis, and Henrik Jonback for Britney Spears' fourth studio album In the Zone (2003). It was released as the album's second single in early 2004 (see 2004 in music). "Toxic" enjoyed international success, topping many singles charts. In 2005 it won the Grammy Award for Best Dance Recording. Along with ...Baby One More Time and Oops!... I Did It Again it is considered one of Spears' signature songs.
It has been covered by Yael Naim, The BossHoss, Local H, the Chapin Sisters, Juliet Turner, Nickel Creek, Hurra Torpedo, The Zoo, Mark Ronson, I Set My Friends on Fire, Hard-Fi, Monsters From Mars, and even Shar Jackson, the mother of Spears' ex-husband Kevin Federline's first two children. The song's cowriter, Cathy Dennis, recorded the demo for the song.
