The Scarlet Tulip EP is a 2011 EP studio release from KT Tunstall, recorded in her home studio in April 2011. The album was recorded and produced by Tunstall, co-produced by Luke Bullen and mastered by Jeremy Cooper.

Tunstall wrote all songs on the EP herself, notably recording them in a single take. She used her own solar-powered studio in the Berkshire countryside.

The Scarlet Tulip EP project was borne out of Tunstall's desire to record some songs she wrote whilst recording Tiger Suit which were not possible to include in the final album track listing. The "Hidden Heart" was written for the naturalist Bruce Parry's Survival project, "to try and gain land protection for indigenous people of the Amazon." All songs are played with acoustic guitar except for one song, "Shanty of the Whale", which Tunstall performs a cappella.

Tunstall started playing some of The Scarlet Tulip EP songs during her gigs, often still performing "The Punk", "Scarlet Tulip" and "The Hidden Heart". The latter was first performed during a concert in Ireland in 2008, subsequently featuring in the compilation Songs for Survival with Piotr Lisiecki singing. The track also features in her 2011 live-to-tape concert recording Live in London March 2011; it was after this time that Tunstall recorded the song for the EP.

After its release, Tunstall continued playing "The Hidden Heart" as part of her 2011 solo tour. Tunstall also sang it as she launched the countdown to the WWF Earth Hour at the Westfield London.

All tracks written by KT Tunstall.

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