On 2 September 2010, various media outlets reported that Vickers was due to re-release her debut album, under a deluxe edition with extra material.

Following this announcement, Vickers stated her new single would be called "My Wicked Heart", a video containing a short snippet of the song was uploaded to YouTube.

[citation needed] Popjustice gave the single a positive review commenting that it resembled, "Florence + The Machine doing "Under the Bridge" via "Crazy Chick" with some big brassy other things thrown in.

[6] Mayer Nissim of Digital Spy stated that the song was "smart-but-not-too-clever" and goes on to say "Vickers and her collaborators tease with stop-start verses and heart murmur drums before smashing our ears right through in a kitchen-sink volley of brass, deranged whoops and a blatant-but-brilliant steal from the Red Hot Chili Peppers' 'Under The Bridge'."

They also stated that "After a welcome second helping, they take it right back down for a breakdown whose berserk "Whoops-a-daisy" refrain will make the existing Marmite split over her voice look like a happy coalition - all in less than three poptastic minutes."

"[8] Upon release, the single steadily climbed up the iTunes chart; although the performance on The X Factor caused it to jump to a peak of number 12.

Vickers is seen clad in a pink leotard and cuffed on to a magician's Wheel of Death with a couple of daggers precariously embedded in the board beside her.

On 16 October 2010, it was reported that Warner Music Group was considering legal action over similarities between the chorus of "My Wicked Heart" and the Red Hot Chili Peppers song "Under the Bridge".

[10] Vickers stated she had listened to "Under the Bridge" shortly before writing the vocal line for "My Wicked Heart", and admitted that she had noticed the resemblance but decided against changing it.